When two protein chains combine to form an active protein, the structural level is quaternary.
What is a quaternary structure?The quaternary and tertiary structure of a protein is the tridimensional shape of the protein, which involves protein domains.
The quaternary protein structure refers to the different arrangements generated by different protein subunits.
The primary structure of a protein involves its amino acid sequence, whereas the second structure involves protein chains.
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When two protein chains combine to form an active protein, the structural level is the quaternary arrangement.
What do you mean by Proteins?Proteins may be defined as naturally emerging, extremely intricate substances that comprise amino acid residues joined by peptide bonds.
The Quaternary structure of a protein is very complex and 3-dimensional as compared to other protein structures which involve numerous motifs and domains.
Therefore, when two protein chains combine to form an active protein, the structural level is the quaternary arrangement.
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The structural and functional units of the kidney are called
Answer:
The structural and functional units of the kidney are called nephron.
Fun Facts about Nephron:
Nephron is the structural and functional unit of the kidney.
Its primary purpose is to maintain the concentration of water and soluble chemicals such as sodium salts in the blood by filtering it, reabsorbing what is needed, and excreting the excess as urine.
The glomerulus and renal (kidney) tubule are the two primary structures in each nephron. Each human kidney contains around 1,000,000 nephrons.
The structural and functional units of the kidney are called the nephrons. Each human kidney contains 8-10 lakhs nephrons.
What do you mean by Kidney?A Kidney may be defined as a pair of bean-shaped organs that eliminate waste and extra water from the blood and help keep chemicals balanced in the body.
Each nephron contains two structures i.e. Glomerulus and Tubules. The Glomerulus is a tough capillary through which a large amount of fluid is filtered from the blood.
Tubules are the other structure of the nephron in which the filtered fluid is converted into the urine.
Therefore, the structural and functional units of the kidney are called nephrons.
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write the difference between
a.Soil formation and Soil erosion
b.Soil pollution and Soil profile
a.
In soil erosion, the soil is carried away from by the wind or water from the top layer of the ground. Soil formation is making soil. It can be by the deposition of the soil from water or wind
Hwo many chromatids does each chromosome have in anaphase of meiosis i
Answer:
two sister chromatids
Explanation:
There are two sister chromatids that each chromosome have in the Anaphase of meiosis I.
What do you mean by Chromatids?Chromatids may be defined as one of the two similar halves of a chromosome that has been duplicated in preparation for cell division.
During Meiosis I, each of the daughter cells is haploid (n) in nature and consists of 23 chromosomes. Each chromosome comprises of 2 sister chromatids.
Therefore, there are two sister chromatids that each chromosome have in the Anaphase of meiosis I.
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What is the genotype of the parents if allele b is dominant over allele b?.
The dominant characteristic will be phenotypically manifested in offspring whose genotype could be BB or Bb.
What is genotype?An organism's genotype is made up of all of its genetic components. The alleles or variations that an individual possesses in a certain gene or genetic region are also referred to as the genotype.
The amount of copies of the each chromosome contained in that species, commonly known as ploidy, determines how many alleles a person can have for a certain gene. In diploid organisms like humans, there are two complete sets of chromosomes, which means that each person possesses two alleles for each gene. The dominant characteristic will be phenotypically manifested in offspring whose genotype could be BB or Bb.
Therefore, the dominant characteristic will be phenotypically manifested in offspring whose genotype could be BB or Bb.
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In photosynthesis, what type of energy do we end up with?
I need the answers asap
I will mark it
Explanation:
Adenosine triphosphate energy
Answer:
In photosynthesis, light energy is converted to chemical energy.
Viruses ___________________________________________________.
are living because they reproduce with help from a host.
are not living because they do not grow.
are not living because they do not respond to stimuli.
are living because they have organelles.
Which of the following relationships is symbiotic?
A group of ants work together to build an underground nest.
A tick latches on to the body of a dog and feeds on the dog's blood.
Abee pollinates a flower while feeding on the flower's nectar.
A remora attaches to the body of a shark and feeds on scraps when the shark eats.
Two male red-winged blackbirds fight over territory.
A male bluebird and a female bluebird provide care for their offspring.
Severe flooding in an area caused a population of minnows to become split into two separate ponds. Prior to the separation, the male minnows all had a moderate number of spots.
Following the separation, the first pond was filled with larger fish that fed on minnows, so male minnows with fewer spots were better able to avoid detection by predators. The minnows in the second pond, however, had very few predators, and female minnows in this pond preferred to mate with males that had the most spots.
After many generations, the two minnow populations evolved into different species and could no longer interbreed.
Fish Species Average # of Spots
Original Species four to six
New Species 1 zero to two
New Species 2 eight to ten
Which of the following best describes why the two minnow populations evolved into separate species?
A.
Natural selection acted upon the traits of the minnows in the first pond only, causing these fish to evolve into a new species with new adaptations.
B.
Natural selection acted upon the traits of the minnows in the second pond only, causing these fish to evolve into a new species with new adaptations.
C.
The same selective pressures were acting upon both populations, leading to a decrease in genetic variation and the formation of two new species.
D.
Different selective pressures were acting upon the two populations, leading to an increase in genetic variation and the formation of two new species.
A blood sample containing erythrocytes with only surface antigen B on the plasma membrane is ABO blood type ______.
Answer:
ABO blood type B
Explanation:
The blood sample only contains B as a surface antigen (simplified as the sugars clinging to the blood embedded halfway inside) making any other blood type unviable. B would be the only option.
A community of kelp, a type of seaweed, grows into an undersea forest. Many fish live in the kelp forest. An oil spill occurs and kills many of the fish. What will most likely happen to the kelp forest?.
Answer:
Population will increase
Explanation:
Since the oil spill the fish, the kelp has a reduced number of natural predators
A mother has hemophilia, and the father is unaffected. What is the probability that their son will have hemophilia? Their daughter?
Answer:
A 25% (one in four) chance of having a son with hemophilia. A 25% chance of having a son with normal blood clotting. A 25% chance of having a daughter who is a carrier. A 25% chance of having a daughter who has hemophilia.
Explanation:
In the extremely rare event that both the mother and the father have the affected X chromosomes then there is a 50% chance that their sons will be born with hemophilia. There will be a 50% chance their daughters will be carriers and a 50% chance they will also have the condition.
Why is it important to continuously monitor seismic data?
Answer:
determining the frequency of occurrence of earthquake activity, evaluating earthquake risk, interpreting the geological and tectonic activity of the area, and providing an effective vehicle for public information and education
Explanation:
I looked it up
Purple petal color in pea plants is dominant to white petal color. Two heterozygous pea plants are crossed. What is the ratio of the offspring with white petals to the total number of offspring?
Answer:
25%
Explanation:
crossing two heterozygous plants would look like this Pp x Pp
making a chart
P p
P PP Pp
p Pp pp
what this means is that the capital P isdminant so thats what will show is the dominant purple petal whereas lower case p is the ressecive white petal
this means 25% of offspring will be white :)
There are 3 differences between the two kingdoms of bacteria. Which of the
following is NOT one of those differences?
What the cell wall is made of.
How they reproduce.
DNA differences
Habitats.
Answer:
the DNA differences should be the answer
Which repair process in e. Coli uses visible light to repair thymine dimers?.
Answer:
photoreactivation repair
Explanation:
Photoreactivation utilizes the enzyme photolyase to break the bonds formed during pyrimidine dimerization. A thymine dimer produced by UV irradiation is bound by photolyase. Visible light energy is absorbed by photolyase and is redirected to break the bonds forming the dimer.
In addition to bacteria, this DNA repair mechanism is also found in single-celled eukaryotes, plants, and some animals such as Drosophila.
Can someone please help me with these three questions for my biology project?
It asks for a 250-word report on these questions. Doesn't have to be 250 but I'd really appreciate it.
What happens in the light reaction of photosynthesis?
What happens in the dark reaction of photosynthesis?
What five factors affect photosynthesis and its rate? How?
Answer:
Explanation:
light reaction - chlorophyll absorbs light energy
dark reaction -
happens in the stoma when light is not presentfactors - chlorophyll, carbon dioxide concentration, light intensity , temperature ,water
How many chromosomes should be in each diploid cells after mitosis.
Answer:
46 chromosomes
Explanation:
46 chromosomes should be in each of these diploid cells after mitosis.
Which of the following are examples of habitats where sympatric speciation could occur?
Choose one or more:
A. different locations along the Great Barrier coral reef in Australia
B. opposite sides of a mountain range
C. the North Rim and South Rim of the Grand Canyon
D. an elevational gradient on the south-facing slope of a mountain
E. varying water depths in a lake
The examples of habitats where sympatric speciation could occur include the following:
A. different locations along the Great Barrier coral reef in Australia
D. an elevational gradient on the south-facing slope of a mountain
E. varying water depths in a lake
What is Sympatric speciation?This is defined as the evolution of a new species from a surviving ancestral species while both continue to inhabit the same geographic region.
The options listed above fall within the same geographic region which was why they were chosen as the most appropriate choice.
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please what is meant by photosynthesis
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's activities. Some of this chemical energy is stored in carbohydrate molecules, such as sugars and starches, which are synthesized from carbon dioxide and water, In most cases, oxygen is also released as a waste product that stores three times more chemical energy than the carbohydrates. Most plants, algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth.
Explanation:
One support of the behavioral perspective is that it is backed by strong and extensive research. please select the best answer from the choices provided t f
The statement one support of the behavioral perspective is that it is backed by strong and extensive research is definitely true.
What do you mean by Behavioral perspective?Behavioral perspective may be defined as the process of all acting throughout life as a result of some form of motivation or incentive.
The behavioral perspective always deals with the behavior of an individual with respect to any stimulus, which may be directly or indirectly associated with that individual.
Therefore, statement one support of the behavioral perspective is that it is backed by strong and extensive research is definitely true.
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Use the drop-down menus to identify which bacterial shape applies. a (rod-shaped) b (spiral-shaped) c (spherical)
The identity of the bacterial shape is the following:
a (rod-shaped)- bacillus.
b (spiral-shaped)- spirillum.
c (spherical)- coccus.
What are bacteria?Bacteria are single-celled microorganisms found as free-living or parasites.
They are found in many shapes and sizes.
There are good bacteria that help humans and other animals, and bad bacteria are harmful to the animals.
Thus, the shape of the bacteria area (rod-shaped)- bacillus., b (spiral-shaped)- spirillum., c (spherical)- coccus.
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Answer✔ Bacillus
A (rod-shaped)
✔ Spirillum
B (spiral-shaped)
✔ coccus
C (spherical)
Explanation:
Canopus is 313 light years from Earth. How old is the light that we are currently seeing?
Answer:
313 years old because ye4s im smart a enginner i know how to spoll cause i ahave all as
Explanation:
Lily is doing a science experiment with a substance in a sealed jar. At first, the substance’s molecules are moving around each other. What will happen to Lily’s substance if she transfers energy into the substance and causes a phase change? After the phase change, the substance’s molecules will move . . . *
1 point
a. faster, and the substance will be a liquid.
b. faster, and the substance will be a gas.
c. slower, and the substance will be a solid.
d. slower, and the substance will be a liquid.
Answer:
I think is B because when you transfer a substance through energy the practicals increase
Which of the following is an example of nonpoint source pollution? A) A leaking gas line B) industrial discharge C)storm water runoff D)an oil spill
Answer:
c.
Explanation:
they all are correct but c is he best answer
Answer:
just as the name implies. Storm does not have any specific place it coming from
explain why camouflage and mimicry can increase an organism’s fitness
Camouflage: Structural adaptation that enables an individual to blend with its surroundings, and that allows an individual to avoid detection by predators. … Camouflage and mimicry are both adaptations because they increase the likelihood of an individual evading predation long enough to reproduce.
Sure hope this helps you! :)
P.S my name is Misty
What is the first step in the cell cycle?
Answer:
Prophase
Explanation:
parent chromosomes are condensed into an x shape
Answer:
The cell cycle is a four-stage process in which the cell increases in size (gap 1, or G1, stage), copies its DNA (synthesis, or S, stage), prepares to divide (gap 2, or G2, stage), and divides (mitosis, or M, stage). The stages G1, S, and G2 make up interphase, which accounts for the span between cell divisions.
Explanation:
pa brainlest
A population of insects is sprayed with a new insecticide. Most of the
insects are killed but a few survive. In the next generation, many more of the
insects are unaffected by the insecticide. Which of the following BEST
explains these results?
Answer: This shows that over time, some insects can become "pesticide-resistant" meaning that pesticides don't affect them anymore. And this only happens every few generations. Therefore, each generation is being naturally selected and accumulating variations that make them resist the chemicals. This shows that each cockroach's genes are changing to give them variation from the rest of the population.
I hope this helps!
Why does aneuploidy in animals generally result in phenotypic abnormalities?.
Answer:
I think it results in an imbalance of gene products from affected chromosomes, which alters normal development
Explanation:
Why: Why is aneuploidy in animals generally detrimental?
Explanation and Answer: Well it does result in an imbalance of gene products from affected chromosomes, which modify normal development. It results in DNA replication mistakes due to the aberrant number of chromosomes.
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Have a wonderful weekend!
What are similarities of the skull?
Answer:
It can provide a fascinating perspective on how animals are related.
Why are food webs more realistic than food chains?
look at the attachment please!
Answer:
the correct answer is B
Explanation:
i put it in answer form for others:)