Answer:
Plants adapted to dry, hot and arid climates are considered xerophytes. Examples include the entire yucca family, acacia trees, and mesquite trees.
Since mesophytes prefer moist, well drained soils, most crops are mesophytes. Some examples are corn (maize), cucurbits, privet, lilac, goldenrod, clover, and oxeye daisy.
what is the name of palencima
Answer: I hope this helps
Explanation:
Palencia Name MeaningSpanish: habitational name from the city or region of Palencia in northern Spain.The Palencia surname is the patronymic or plural form of Palazzo; which is a habitational name, created a place name such as Palazzo Adriano in Palermo province, Sicily; Palazzo San Gervasio in Potenza province; or possibly from Palazzo Canavese in Turin province. Spanish and Basque: habitational name from Placencia (in Basque: Plaentzia) a town in Gipuzkoa province Basque Country (Spain) in Basque also known as Soraluze and hence officially named bilingually as Soraluze-Placencia de las Armas.
Answer:
Palencia, capital of Palencia province, in the Castile-León autonomous community, north-central Spain. It lies on the Campos Plain southwest of Burgos. Called the Pallantia by the ancient Greek geographers Strabo and Ptolemy, it was the chief town of the Vaccaei, an Iberian tribe.
Explanation
Why can’t we live on planet Venus
Answer: With extreme surface temperatures reaching nearly 735 K (462 °C; 863 °F) and atmospheric pressure 92 times that of Earth, the conditions on Venus make water-based life as we know it unlikely on the surface of the planet. We would die if we went to venus at the moment.
How can you tell from looking at a nuclear reaction that fusion has taken place? (1 point)
O The total number of protons and neutrons will increase.
O The nucleus with the largest mass will be on the left side of the equation.
The nucleus with the largest mass number will be on the right side of the
equation.
O The total number of protons and neutrons will remain constant.
You can tell from looking at a nuclear reaction that fusion has taken place by an increase in the total number of protons and neutrons which is denoted as option A.
What is Nuclear fusion?
This is referred to as a form of reaction which involves the fusion of two or more light nuclei to form a heavier nucleus.
We are ware that the nucleus comprises of subatomic particles such as proton and neutron which therefore means that a heavier nucleus being formed will lead to an increase in the total number of protons and neutrons hence option A was chosen.
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WHAT'S THE ANSWER??
dna does all but which of the following? group of answer choices is read by ribosomes during the process of translation provides the instructions for the synthesis of messenger rna remains mostly constant despite changes in environmental conditions serves as the genetic material passed from parent to offspring
The process of producing proteins by ribosomes in the cytoplasm or endoplasmic reticulum is known as DNA translation.Messenger RNA (mRNA) is produced by transcription using the genetic information contained in DNA as a starting point.During translation, single stranded mRNA then serves as a template.
Is DNA used by ribosomes for translation?
Using the genetic code, ribosomes translate the messenger RNA (mRNA) nucleotide sequence into a protein sequence.This process of translation from the nucleotide language of RNA and DNA into the amino acid language of proteins is mediated by transfer RNAs (tRNAs). The process of translation converts the information carried by messenger RNA from DNA into a string of amino acids joined by peptide bonds.Translation from one code (nucleotide sequence) to another code is essentially what it is. DNA is a lengthy polymer with a phosphate backbone and deoxyriboses.containing the nitrogenous bases adenine, guanine, cytosine, and thymine in varying proportions.RNA has a ribose and phosphate backbone and is a polymer.The nitrogenous bases adenine, guanine, cytosine, and uracil are all different. DNA is not directly involved in the process of translation.The amino acid chain is created by first translating DNA into mRNA, which is subsequently translated into protein.Only the processes of replication and transcription involve the use of DNA.It plays no direct part in translation. mRNAs are either translated, retained for future translation, or destroyed after they have reached the cytoplasm.Initial translation of mRNAs may be followed by a brief translational repression.At some point, all mRNAs are destroyed at a specific pace. The broad family of RNA molecules that transmit genetic information from DNA to the ribosome, where it specifies the amino acid sequence of the protein products of gene expression, is known as the ribosomal RNA family.
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g if 9% of a population is born with a severe form of sickle-cell anemia (ss), what percentage of the population will be more resistant to malaria because they are heterozygous (ss) for the sickle-cell gene, assuming the population is in hardy-weinberg equilibrium?
The H-W equilibrium theory states that, considering a diallelic gene, the addition of allelic frequencies equals 1 (p + q = 1) and the addition of genotypic frequencies equals 1 (p² + 2pq + q² = 1). The percentage of the population that is heterozygous (Ss) for the sickle-cell gene is 42%.
What is the Hardy-Weinberg equilibrium?The Hardy-Weinberg equilibrium theory states that in populations that are in equilibrium, their allelic and genotypic frequencies remain the same generation after generation.
These populations are not evolving. No evolutive forces or other events that affect their frequencies are acting on them.
Assuming a diallelic gene that codes for a trait,
⇒ Allelic frequencies are represented as p and q,
The frequency of the dominant allele p(X) is pThe frequency of the recessive allele p(x) is qThe addition of the allelic frequencies equals 1
p + q = 1.
⇒ The genotypic frequencies after one generation are
p² (Homozygous dominant genotypic frequency), 2pq (Heterozygous genotypic frequency), q² (Homozygous recessive genotypic frequency).The sum of genotypic frequencies equals 1
p² + 2pq + q² = 1
Now let us answer the question,
Sickle cell anemia is an autosomal recessive disorder, so individuals expressing this phenotype are homozygous recessive, ss.
We need to calculate the frequency of the heterozygous genotype by using the frequency of homozygous recessive individuals.
The genotypic frequency of individuals born with the disorder is 9%, so
q² = 9% = 0.09
So, knowing the homozygous recessive frequency, we will calculate the recessive allele frequency, q.
If q² = 0.09, then q = √q² = √0.09 = 0.3
So the recessive allele frequency is q = 0.3
Now we need to get the dominant allele frequency, and we will get it by clearing the equation p + q = 1
p + q = 1
p + 0.3 = 1
p = 1 - 0.3
p = 0.7
So, the dominant allele frequency is p = 0.7.
The dominant genotypic frequency is p² = 0.7² = 0.49
Up to here, we know that,
p = 0.7q = 0.3p² = 0.49q² = 0.09With these data, we can calculate the heterozygous genotypic frequency -2pq- by clearing the following equation,
p² + 2pq + q² = 1
0.49 + 2pq + 0.09 = 1
2pq = 1 - 0.49 - 0.09
2pq = 0.42
Assuming the population is in hardy-weinberg equilibrium, the frequency of heterozygous individuals Ss = 2pq = 0.42 = 42%.
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8. Marine animals live in salt water, which is a hypertonic environment, there is more salt in the water than in the cells. To prevent losing too much water from their bodies, these animals intake large quantities of salt water and then secrete the excess salt. Why is the balance of water molecules inside and outside the cell is extremely important for the survival of all organisms, including humans?
Every aspect of existence depends on balance, or homeostasis, so maintaining this equilibrium is crucial. Although the amount of water required by each organism varies, they all require a certain quantity of water in order to keep their internal environments balanced.
Evaporative cooling is the most effective method of removing extra body heat, hence maintaining body water homeostasis is essential for avoiding hyperthermia. The kidneys control water intake and excretion to maintain water balance. The former is accomplished through thirst sensations that spur water intake, whilst the latter is controlled by vasopressin's antidiuretic effects.
Maintaining homeostasis is essential for an organism to function properly. So an organism can function in a close to absolute equilibrium all because of balancing.
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cystic fibrosis is a genetic disorder in humans where the person has two homozygous recessive alleles for the gene. if the disease is left untreated, it causes severe health problems in the individual. assuming hardy-weinberg equilibrium, if 198 in 10,000 newborn babies have the disease, 0.0198 would be homozygous recessive. given these numbers, the expected frequency of heterozygote carriers in the population would be
The expected frequency of heterozygote carriers in the population would be individuals, frequency of dominant allele is 0.97.
The existence of two unique alleles at a specific gene locus. One normal allele, one mutant allele, or two separate mutant alleles may be present in a heterozygote genotype (compound heterozygote).
It has two distinct copies of the alleles that code for a certain characteristic. It contains a trait's several alleles. both the recessive and the dominant and also it contains a trait's several alleles. both recessive and dominant.
Gametes are created in two categories. Complete, codominant, or imperfect dominance are possible for heterozygous alleles.
One contentious theory for why genetic variety exists in natural populations is heterozygous advantage. Humans who are homozygous for sickle-shaped cells (as shown in the image opposite) experience a condition known as sickle cell anemia, which is a classic example of heterozygous.
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(ii) D is a vein. State the name of this vein and describe its structure.?
name description of structure.?
Answer:
Inferior venacava is a D vein
Vein is defined has been defined as the blood vessel that carries blood to the heart from tissues and organs in the body.
What is vein?The arteries, which are three-layered blood vessels, transport oxygen-rich blood from the heart to the body's tissues. The three-layered blood channels known as arteries carry oxygen-rich blood from the heart to the body's tissues.
Collagen and elastic fibres are present in the connective tissues that make up the outer layer, which supports the blood artery. The intermediate layer is composed primarily of elastic fibres, collagen, and smooth muscles.
The flexibility and strength are provided by this layer. The wall may stretch because of its elastic fibres. Because of the smooth epithelial cells that make up the inner endothelium, friction is reduced. In terms of structure, veins and arteries are comparable, with the exception of these three thin and elastic layers.
Therefore, Vein is defined has been defined as the blood vessel that carries blood to the heart from tissues and organs in the body.
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g if the ecologist placed 12 kangaroo rats in the area between the patches and the animals followed an ideal free distribution, approximately how many individuals would be in each habitat?
8 in the high quality patch, and 4 in the low quality patch would be in each habitat.
What is a habitat?A habitat encompasses the array of resources, physical and biotic factors that are present in an area, such as to support the survival and reproduction of a particular species.
From the question, the ideal distribution between the two patches should be such that each of them receive the most per capita.
An organism habitat is any home that is a natural environment in which an animal, plant, or other organism lives.
There are basically three types of habitat which includes:
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The complete question is attached in an image:
explain why the delay between muscle stimulation and load movement became longer asthe load became heavier in the experiment. how well did the results compare with yourprediction
The delay in muscle response with heavy load make it longer to heavy weight because as the weight of the load increases, so does the latent period time and the shortening velocity speeds.
When the muscle tension exceeds the load, muscle shortening occurs. The latent period increases as the weight of the load gets heavier, this is for the important force to be activated by the muscle.
If enough myofibrils shorten, the whole muscle fiber slides gets shorter. As more and more muscle fibers contract with each other, they shorten the entire muscle by changing the attachment points at the two ends of the muscle toward each other.
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when two strains of bacteria with genotypes abcd and abcd are grown together in the lab, a small number of bacteria with the genotype abcd eventually arise. how does this likely occur? meiosis lateral gene transfer variable expressivity epistasis phenotypic plasticity
When two strains of bacteria with genotypes abcd and abcd are grown together in the lab, a small number of bacteria with the genotype abcd eventually arise, which is likely due to lateral gene transfer (Option 2).
What is lateral gene transfer?Lateral gene transfer can be defined as a process that occurs in prokaryotic organisms such as bacteria which is associated with the interchange of genetic material between them.
Therefore, with this data, we can see that the process of lateral gene transfer causes the interchange of genetic material and therefore increase variation in the resulting bacteria.
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Which type of mining is more dangerous to miners and the environment?
O biomining
O shaft mining
O surface mining
O strip mining
what does the latent period on a myogram indicate? multiple choice question. the time period between the release of ach and the binding of ach to its receptor the time period between the stimulus and the twitch the time between troponin-tropomyosin conformational change and myosin binding the time period between relaxation and contraction of a myofiber
The latent period on a myogram indicates Option B. is the period of time between the stimulus and the twitch.
A myogram is an image record of the speed and intensity of muscle contractions. A graphical recording of muscle hobby. kinds: EMG, electromyogram. a graphical file of electrical currents associated with muscle contractions. kind of: graph, graphical file.
A myelogram is ready to show your spinal cord, spinal nerves, nerve roots, and bones within the spine by means of injecting evaluation into your spinal fluid. As an end result, it'll additionally display whether or not something is urgent for your spinal cord or nerves.
A Myogram of a Muscle Twitch: A unmarried muscle twitch has a latent period, a contraction segment whilst anxiety will increase, and a relaxation section when anxiety decreases.
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blood vessels throughout the human body differ in terms of composition, contents, and size. however, vessels can be grouped into three classes: arteries (and arterioles, the smallest of the arteries), capillaries, and veins (and venules, the smallest of the veins). in which class of blood vessel does blood pressure refer to the pressure that blood exerts against them?
In arteries class of blood vessel does blood pressure refer to the pressure that blood exerts against them
Blood pressure is the force of your blood against the artery walls. Blood is transported from your heart to different regions of your body through arteries. Throughout the day, your blood pressure typically increases and decreases.
The main blood vessel supplying the muscles in your upper arm and elbow joint is called the brachial artery. It's frequently used to check blood pressure. Because the brachial artery is located close to the skin's surface, violent traumas like arm fractures might harm it.
Blood pressure is also influenced by arterial wall thickness and flexibility. The arteries experience pressure every time the heart contracts and relaxes. When blood is being pushed from the heart into the arteries, the pressure is at its highest.
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Remembering that proteins are made in cells that are 70% water- and water is polar-
describe how you might imagine that a protein spontaneously folds up into a complex 3D
shape.
The protein structure is divided into 4 levels. The primary structure is made up of peptide bonds connecting the amino acid chains. One's N terminus forms a relationship with another's C terminus.
The initial step of folding is secondary structure. The amino acid chain may create structures like the Alpha helix and Beta sheet by hydrogen bonding with itself.
How is protein structure impacted by polar?A protein's overall structure is impacted by the polarity of its amino acids. Due to the hydrophilic characteristics of the side chain, polar amino acid residues frequently occur outside of proteins.
The folding and intramolecular bonding of a protein's linear amino acid chain are driven by the protein's fundamental structure, or its amino acid sequence, which ultimately defines the protein's distinctive three-dimensional form.
When multiple amino acids combine to form a protein, each amino acid's special characteristics dictate how the protein folds into its ultimate 3D structure. The protein may carry out a particular job in our cells because of its structure.
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geneticists often assume that map distances less than 7 to 8 map units (m.u.) are accurate. map distances that exceed this threshold significantly are assumed to be less accurate and the level of accuracy declines as map distances increase. briefly explain this observation.
The further apart two genes are the more likely it is that multiple crossovers will occur.
Even if there has been crossing over, the offspring may still have parental genotypes that are not considered recombinants if there is a double crossover (or an even number of crossovers) between two genes. Double crossings will cause the real map distance to be underestimated since genetic maps are constructed by counting visible recombinants in the progeny.
The middle allele is transferred from one sister chromatid to the other during a double-crossover event, which is the following crucial step. As a result, the surrounding genes' parental alleles and the non-parental allele of the middle gene are positioned on the same chromosome.
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Female fireflies choose mates based on the specific flash pattern displayed by males flying nearby. This is an example of ________.
Female fireflies choose mates based on the specific flash pattern displayed by males flying nearby, which is an example of behavioral isolation.
What is behavioral isolation?In biology, the term behavioral isolation makes a reference to the reproductive mechanism in which mating is based on the behavior of adult individuals of the species such as in this case female fireflies.
Therefore, with this data, we can see that behavioral isolation is a type of reproductive isolation mechanism based on the behavior of individuals in order to control population numbers depending on the environmental conditions.
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Trans fats are made by a process of adding hydrogen atoms to an unsaturated fatty acid, making them more saturated. What is this process called?.
The process of hydrogenation, which increases an unsaturated fatty acid's saturation by adding hydrogen atoms, produces trans fats.
What is an unsaturated fatty acid example?Alpha-linolenic acid, myristoleic acid, palmitoleic acid, sapienic acid, oleic acid, elaidic acid, vaccenic acid, linoleic acid, linoelaidic acid, erucic acid, docosahexaenoic acid, and eicosapentaenoic acid are a few examples of unsaturated fats.
What components make up an unsaturated fatty acid?Unsaturated fatty acids (UFAs), which are divided into monounsaturated fatty acids and polyunsaturated fatty acids, are long-chain hydrocarbons with at least one double covalent bond and an end in a carboxyl group (-COOH). Both of these types of UFAs provide significant health benefits for people.
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when a cluster of cells in the ovum splits off within the first two weeks after fertilization and forms two nearly identical zygotes, the result is .
Monozygotic twins occur when a single zygote or fertilized egg splits apart in the first two weeks of development.
In monozygotic twins, the blastocyst then splits and develops into two embryos. Zygotic splitting occurs between second and sixth day when the zygote divides, in two parts, each zygote then develop into an embryo, leading to identical twins .
Identical, or monozygotic, twins may or may not share the same amniotic sac, depending on how early the single fertilized egg divides into two parts. Factors that increase the chance of twins include are dependency on high amounts of dairy foods, crossing the age of 30, and conceiving while breastfeeding.
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What is the function of the cell membrane of this bacterium
A. To produce ADP
B. To form the only protective layer preventing damage from outside
C. To control entry and exit of substance
D. To synthesize proteins
C. To control entry and exit of substance
Answer: C. To control entry and exit of substance
Explanation: The whole purpose of a cell is tk regulate the transport of materials entering and exiting the cell so i presume c is the answer. You said "this baterium" so i asume that a picture was supposed to be sent with the question, to be safe i suggest you send the picture so we can make sure you get the correct answer.
Grass->Grasshopper->Mouse
According to the 10% rule, how
much of the grass's energy does
the mouse receive in this
example?
A. 90%
B. 10%
C. 1%
Answer: 1%
Explanation: Since its dividing by 10 every time an animal consumes another animal/plant, if you start at 100%, 100/10 = 10, 10/10 = 1.
1%
describe the independent and dependent variables and a control treatment for an experiment to test the hypothesis that higher trichome density in plants is selected for in the presence of herbivores. identify an appropriate duration of the experiment to ensure that natural selection is measured, and predict the experimental results that would support the hypothesis.
Independent variable - presence of herbivores
Dependent variable - trichome density
Control - absence of herbivores
Duration - more and 1 generation
Prediction - Density of the trichomes increased between the control and variable tests
A unique name is provided to variables that is exclusively used in experimental studies. The dependent variable is referred to as such, and the independent variable as such.
The independent variable is the sole significant distinction between the experimental (e.g., treatment) and control (e.g., placebo) groups in a well-designed experimental trial. The variable that is being tested and measured in an experiment is referred to as the dependent variable since it is 'depending' on the independent variable.
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What evidence encourages some archeologists to believe that ritual accompanied burials from about 100,000 years ago?.
A process known as "flint knapping," which translates to "to shape by breaking off bits," is used to remove chips or flakes from a piece of fine-grained stone like flint. This produces a huge amount of waste scraps or flakes, much as when you whittle a piece of wood.
Sharp stone flakes serve what purpose?Tools fashioned of flake stone, such as spear points, arrowheads, knives, scrapers, and drills, have sharp edges when shattered.
The Paleolithic Era : Old Stone Age is another name for the Paleolithic Period, a prehistoric cultural stage or degree of human evolution that was marked by the use of crude chipped stone tools.
Homo habilis, one of the oldest members of the human family, created the first stone tools during the early Stone Age, which is also referred to as the Lower Paleolithic. These were essentially stone cores that had flake material taken from them to sharpen the edge, making it suitable for use in cutting, chopping, or scraping.
Hammerstones were employed by early humans in East Africa to pound off sharp flakes from stone cores. Early humans employed these techniques for accessing new resources, including flesh from huge animals, for more than two million years.
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Is the exoplanet like earth in terms of its distance from its star? Explain your answer
The majority of known close-by exoplanets revolve around their sun. A handful have comparable masses to Earth, including planets at YZ Ceti, Gliese 367, and Proxima Centauri, which may be less massive than Earth. The bulk, however, are substantially larger than Earth.
What is an exoplanet ?
In our solar system, every planet revolves around the Sun. Exoplanets are planets that revolve around other stars. Exoplanets are extremely difficult to directly observe using telescopes. The intense light from the stars they orbit obscures them.
Therefore, astronomers employ various techniques to find and research these far-off planets. By observing the impacts that these planets have on the stars they circle, astronomers look for exoplanets.
The majority of known close-by exoplanets revolve around their sun. A handful have comparable masses to Earth, including planets at YZ Ceti, Gliese 367, and Proxima Centauri, which may be less massive than Earth. The bulk, however, are substantially larger than Earth.
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eukaryotic genomes comprise mostly , whereas prokaryotes have mostly . choose one:a. positively supercoiled dna; negatively supercoiled dnab. noncoding dna; coding dnac. circular dna; linear dnad. double-stranded dna; single-stranded dna
Eukaryotic genomes comprise mostly noncoding DNA, whereas prokaryotes have mostly coding DNA. So the correct option is (b).
Prokaryotic chromosomes are found in the nucleoid, while those of eukaryotes are found inside the nucleus. Eukaryotic cells contain a membrane-bound nucleus (as well as membrane-bound organelles), whereas prokaryotic cells have not. This is the primary distinction between the two types of cells.
Prokaryotic genomes have less noncoding DNA compared to eukaryotic genomes, which have a lot of it. Bacteria typically have circular chromosomes, whereas eukaryotes typically have linear chromosomes. Eukaryotes and prokaryotes both have negatively supercoiled double-stranded DNA.
Therefore, eukaryotic genomes comprise mostly noncoding DNA, whereas prokaryotes have mostly coding DNA. So the correct option is (b).
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You just visited your doctor and he suggested you are at risk for heart disease. which type of lipid should you avoid eating large amounts of?
The worst kind of fat to consume is trans fat. Trans fats, commonly known as trans-fatty acids, enhance bad" cholesterol while also lowering "good" cholesterol, in contrast to normal dietary fats. Heart disease, the number one killer of adults, is increased by a diet high in trans fats.
Which fats, and why, are better for heart health?
Triglycerides, a form of fat that clogs arteries, can be reduced with the use of omega-3 fatty acids. Among the monounsaturated fats are peanut, olive, and canola oils.
Olives, avocados, nuts, and nut butters are additional excellent sources. These lipids have the potential to increase "good" (HDL) cholesterol and lower "bad" (LDL) cholesterol.
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Ten Discussion Questions1.Which number is beside the waxy covering of this flower? (image 1)2. Which number is beside the pistil of this flower? (image 1)3.What are the reproductive organs of a plant called?4. What are the reproductive organs of an animal called?5. What is an exoskeleton and explain its function?6. How are the support systems of plants and animals different?7. How is the function of a plant's waxy covering similar to the function of a cat's hair?8. How is the function of a plant's pistil and stamen different from the function of the ovariesand testes of an animal?9. Name one plant and one animal and explain a similarity between the function of theirorgans or physical structures.10. Name one plant and one animal and explain a difference between the function of theirorgans or physical structures.
Parts of the flower:
1. pistil
2. petal
3. leaf
4. receptacle or stem (location of number is not clear)
Answer to question 1 is receptacle or stem.
Answer to question 2 is petal
Answer to question 3
The reproductive organs of the plant are stamen, stigma, calyx, pistil, and colas.
Stamen is the male part of a flower. Stigma is responsible for collecting pollen grains. Calyx is a component of sepals and responsible for protecting the inner part of the flower while it is under development. Pistil is the female reproductive part of the flower. Cola is the bud. It is a cluster of buds. In general, the reproductive parts are the androecium (group of stamens) and gynoecium (carpels/pistils).
nitrogenase choose one: a. requires oxygen as an electron acceptor. b. works well in any environment. c. is a relatively small enzyme. d. requires many atp and electrons to reduce n2 to 2nh4 .
The correct answer is option D.
Nitrogenase requires many ATP molecules and electrons to reduce N2 to 2NH4.
In general, nitrogenase is a nitrogen fixing enzyme produced by particular bacteria such as rhizobacteria and cyanobacteria
Biologically, this enzyme plays a key role in nitrogen fixation process. During this process it converts nitrogen to ammonia.
Living organisms reduce di-nitrogen to ammonia i.e. N2 to 2NH4 by using ATP molecule.
To put it simply, nitrogenase enzyme is the key component of nitrogen cycle that fixes the atmospheric nitrogen and transforms this nitrogen into ammonia which is later used by plants.
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where does pre-mrna splicing occur in a eukaryotic cell? question 7 options: in the nucleus in the golgi apparatus in the rough er in the cytoplasm in the lysosome
Pre-mRNA splicing occurs in nucleus in a eukaryotic cell.
What is RNA splicing?
RNA splicing is the process in molecular biology that converts a newly produced precursor messenger RNA transcript into a mature messenger RNA. To make it work, exons must be re-joined after all introns have been deleted.
the method by which exons (i.e., coding sections) are linked together to form mature messenger RNA while introns, the non-coding portions of genes, are removed from the primary messenger RNA transcript. The latter acts as a model for the creation of a particular protein.
Transcription and RNA (which involves splicing) of the newly synthesized mRNA takes place in the nucleus thereafter mature mRNA transcript is transported to the cytoplasm for translation.
Hence the correct answer is the nucleus.
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