The pairs of base sequences could form a short stretch of a normal double helix of DNA is:
D) 5'-ATGC-3' with 5'-GCAT-3'
In DNA, the code letters are A, T, G, and C, which stand for the chemical substances adenine, thymine, guanine, and cytosine, respectively. Under normal occasions, the nitrogen-containing bases adenine (A) and thymine (T) pair collectively, and cytosine (C) and guanine (G) pair collectively. The binding of those base pairs forms the structure of DNA.
Because of the base pairing, the DNA strands are complementary to each different, run in opposite guidelines, and are referred to as antiparallel strands.
Complementary base pairing is important in DNA because it lets the base pairs be arranged in the maximum energetically favorable way; it's miles crucial in forming the helical structure of DNA. it's also critical in replication as it allows semiconservative replication.
You could determine the sequence of a complementary strand if you are given the series of the template strand. These strands are complementary, with each base in one sticking to its partner on the alternative. The A-T pairs are linked by means of two hydrogen bonds, whilst the G-C pairs are connected through three hydrogen bonds.
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Explain the structure and function of venous valves in the large veins of the extremities?
The structure of venous valves in the large veins of the extremities is that the the valves in the veins are hemispherical in shape and are made up of Elastic tissue. These valves are lined by the endothelium like the rest of the veins. Beneath this endothelium, elastic tissue is present in the form layers or lamellae.
The functions of the of venous valves in the large veins of the extremities is is to keep the blood moving in one direction which is back up towards the heart.
What are veins?Veins are regarded as blood vessels located throughout your body that collect oxygen-poor blood and return it to your heart.
Veins are generally part of your circulatory system which work together with other blood vessels and the heart to keep blood moving in the body.
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40. The evidence of evolution that centers around the anatomy of a species isknown asA. biochemical evidence.B. morphological evidence.C. fossil evidence.
The changes in morphology allow us to differentiate between species, but also, the anatomic similarities as some bones, like humerus, and radius, between others, help the scientist to evidence the evolution. So morphological evidence is the data used to determine evolutionary relationships. The answer would be B.
Aside from cell membrane, where else can you find a bilayer of lipid?
Answer: Lipid Enveloped Viruses
Explanation:
Lipid enveloped viruses contain a lipid bilayer coat that protects their genome to help facilitate entry into the new host cell.
The large intestine:is also called the colon.is smaller than the small intestine.contains a variety of living bacteria.All of the choices are correct.
Answer:
All of the choices are correct.
Explanation:
Large intestine aka colon is smaller than small intestine but wider than it and contains a variety of living bacteria.
hat is true about the relationship between cells and the organism they are part of?
The direct connection which exist between cells and the organisms they are part of is: Cells make up the basic structure of an organism, and they perform basic life functions for the organism.
The correct answer choice is option a
How is cell part of an organism?All living organisms are composed of cells. This goes to say that just as a building is made of bricks, so also the cells are the building blocks of living organisms and part of an entire organism.
A cell is the structural and functional unit of life. There are two major types of organisms based on the numbers of cells they possess. These are:
Unicellular organismMulticellular organismsSo therefore, the relationship between cells and organisms is that the cells are the basic structure which is life wire of an organism.
Complete question:
What is true about the relationship between cells and the organisms they are part of?
a. Cells make up the basic structure of an organism, and they perform basic life functions for the organisms.
b. Cells make up the basic structure of an organism, but they do not perform basic life functions for the organisms.
c. Cells perform basic life functions for the organisms, but they do not make up the basic life structure of an organism.
d. Cells do not make up the basic structure of an organism, and they do not perform basic life functions for the organisms.
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16. A heterozygous organism is also known asA. dominant.B. purebred (true-breeding).C. hybrid
As w know in mendelian genetics, a heterozygous organism has two allele versions, meanwhile, a homozygous organism has both copies equal, so homozygotes are also called purebred and heterozygotes hybrids, so the correct answer is option C.
Which of these statements best describes what scientists do?
• study things only in nature
• explain events that occur in space
• experiment to solve problems in space and the world around us
• design strong bridge architecture
Answer: experiment to solve problems in space and the world around us
The purpose of scientists is to try and understand why things in the universe, including the earth and other bodies in space, work and behave the way they do and for what purpose.
The subject is Kudzu An invasive speciesReview the pic Then answer the “•”Give two predictions, in your own words, as said in the photo
Invasive species are those that have been lost to areas outside their original range and that may cause damage in their new range.
. Answer: "Plants of this ecosystem will be affected"
Explanation: invasive species such as Kuduzu can displace native species by competing for resources or habitat, which alters community structure and can result in the extinction of native species.
In the photo we can see that Kuduzu is a trailing plant that takes away the light from the plants that are below and therefore they do not survive.
.Answer: "Negative consequences are produced in the environment, leading to a loss of biodiversity"
Explanation: each species is related to the rest of the living beings. An autotrophic plant will be at the beginning of a food chain and if it is completely extinguished it will affect each link that continues. All living beings that depended on the presence of the plant will be negatively affected, decreasing their number and therefore leading to a loss of biodiversity.
identify the choices that best complete the statement or answer the question
Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres."
1. Atmosphere
2. Biosphere
3. Hydrosphere
4. Geosphere
5. What are two advantages of glycolysis?
Answer:
1. it generates cellular energy
2. it can be carried throughout the cell which gives it an advantage over the TCA and oxidative cycles
please look at the picture
Answer:
The B is the correct ANSWER.
Explanation:
PARTS OF THE PLANT Write the words from the box in the correct place: transported absorb food Support sunlight (ground) reproductive organs Flower The flower contains the plant's pes Port
ed
Answer:
Explanation:
The part of a plant that remains under the ground is the root system and the part of a plant that remains above the ground is the shoot system.
Describe the structure and function of the skin
The skin is the largest organ of the human body. It has three layers: epidermis, dermis, and hypodermis.
The epidermis is the outermost layer. It is composed of keratinocytes, a type of epithelial cell that produces keratin. The compact nature of the epithelial cells of the epidermis makes the skin waterproof. Melanocytes are also found in this layer and produce melanin, or skin pigment. The epidermis function as protection against UV rays.
The dermis is the inner thicker layer that is mostly composed of connective tissue and connected to the epidermis by collagen fibers. The structures found in this layer are the hair follicle, hair root, sebaceous gland, and sweat gland. The dermis function is to excrete excess oils and waste out of the body through the production of sweat and production of vitamin D with specialized cells found in this skin layer.
The hypodermis is the innermost layer that is composed of adipose tissue. It functions as a cushion between the muscles and the skin.
Which one of the following statements about intracellular transport is TRUE?
a. kinesin and myosin move substances along microtubules
b. kinesin moves substances along microfilaments
c. kinesin and dynein move substances along microtubules
d. kinesin and dynein move substances along microfilaments
The true statement about the intracellular transport is option C. kinesin and dynein move substances along microtubules.
Intracellular transport is the movement of vesicles and materials within a cell. Intracellular shipping is needed for preserving homeostasis in the cellular by responding to physiological alerts.
The primary difference between intercellular and extracellular fluid is that intracellular fluid is the liquid found in the cell whereas extracellular fluid refers to all the frame fluids outdoor the cell. Intracellular transport is important for maintaining the right mobile function in maximum eukaryotic cells, with perturbations in lively shipping ensuing in several kinds of sickness.
Cytoskeleton Determines the location of Organelles inside the mobile. Intracellular shipping of molecules and organelles is liable for their delivery to vacation spot websites.
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Question 12
Where would you expect to find the most seismic activity (earthquakes/volcanic
eruptions)?
in the mountains
at a plate boundary
in the middle of a plate
The most seismic activity occurs in earthquakes .
Seismic waves are caused by the sudden movement of things that are present within the Earth, also considered as fault during an earthquake. Other reasons may includes Volcanic eruptions, explosions, landslides, avalanches, and even rushing rivers can also cause seismic waves.
For example The Ring of Fire is a string of volcanoes and sites of seismic activity, or earthquakes, present at the edges of the Pacific Ocean. Mainly two types of plate boundaries that produce volcanic activity are divergent plate boundaries and convergent plate boundaries. Divergent Plate Boundaries the tectonic plates move apart from one another.
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When reading the nutrition facts on a food label, total fats is a measure of
Answer:
If a food has less than 0.5 grams of saturated fat in the serving size on the label, the food maker can say it contains no saturated fat. Remember this if you eat more than 1 serving. You should also pay attention to trans fats on any food label. These fats raise "bad" cholesterol and lower your "good" cholesterol.
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Explain one environmental drawback, not related to water use, of using the franking process to extract natural gas from shale.
One environmental drawback of using the franking process to extract natural gas from shale, is air pollution.
Methane is a main component of natural gas and is 25 times more potent in trapping heat in the atmosphere than carbon dioxide. A number of other air contaminants are released through the various drilling procedures, including construction and operation of the well site, transport of the materials and equipment, and disposal of the waste. Some of the pollutants released by drilling include: benzene, toluene, xylene and ethyl benzene (BTEX), particulate matter and dust, ground level ozone, or smog, nitrogen oxides, carbon monoxide, formaldehyde and metals contained in diesel fuel combustion---with exposure to these pollutants known to cause short-term illness, cancer, organ damage, nervous system disorders and birth defects or even death .
I need help with this practice problem solving In your own words answer my pic below all
Answer:
Kudzu was intentionally introduced to North America by the Soil Erosion Service and Civilian Conservation Corps in the 1930s for the purpose of controlling soil erosion in the American Southeast.
List similarities of digestive system of human and of a frog digestive system
Frogs and humans have the same organs in its digestive system, and their functions are the same. That means that, except a few differencies, frogs and humans digestive systems are mainly the same. Both of them consists of esophagus, stomach, small intestine and large intestine, as well as the mouth. The organs work together in a similar way, digesting food since the mouth until the intestine.
Thirty radish seeds moistened with plain
tap water all sprouted in three days. However,
NONE of a group of thirty radish seeds
moistened with salty tap water sprouted in that
time. What is the best way to investigate whether
the salt in the water killed the second group of
seeds or just prevented them from sprouting?
A. Repeat the experiment with all new seeds
B. Repeat the experiment with new seeds, but
use a greater amount of salt in the water
C. Rinse all salt off the unsprouted seeds and
moisten them with plain tap water
D. Rinse all salt off the unsprouted seeds and
moisten them again with salt water
When two gametes (such as an egg and sperm) combine, the process is known asasexual reproduction.embryogenesis.fertilization.parthenogenesis.
When these two gametes (an egg and a sperm) combine with each other, the process is known as fertilization (as we can see in the third answer option), and this is achieved by these two sexual cells by a set of physiological reactions in which both cells are involved, for example, they can chemically attract between each other. After this process, also known as fecundation, there would be the formation of a zygote, which will end in the formation of an embryo after embryogenesis. We can see this graphically in the picture below, where there're a sperm and an egg with their parts.
How do the cells of alzheimer's compare and contrast with peoples cells without Alzheimer's?
Match the following processes in respiration with their location within a cell.
The following processes in respiration with their location within a cell are: -
A. Proton moves into - Thylakoid Lumen
B. Respiration - Mitochondria
C. C3 Cycle - Stroma
D. PS I and PS II - Thylakoid Membrane
Thylakoid Membrane- The light processes of photosynthesis are carried out by a system of connected internal membranes called thylakoid membranes in a chloroplast. They are organized into stacked & unstacked sections, grana & stroma thylakoids, which are differently enriched with photosystem I & II complexes.
Mitochondria- The mitochondria, membrane-bound cell organelles, generate the majority of a chemical energy needed to power a cell's metabolic processes. The small molecule adenosine triphosphate serves as a reservoir again for chemical energy produced by mitochondria (ATP).
The given question is incomplete, find below the complete question,
Q. Match the following processes in respiration with their location of their occurrence within a cell.
A. Proton moves into I. Mitochondria
B. Respiration II. Thylakoid membrane
C. C3 cycle III. Thylakoid lumen
D. PS I and PS II IV. Stroma
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A scientist diluted a blood sample with distilled water and waited two hours before looking at the cells under a light microscope.
The blood cells
O remained the same size since they were placed
in an isotonic solution
O gained water because they were placed in a
hypotonic solution
• gained water because they were placed in a hypertonic solution
O lost water because they were placed in a
hypotonic solution
El agua destilada y el agua de chorro son hipotónicas comparadas con la sangre. Si el glóbulo rojo se sumerge en una solución que tiene una osmolaridad menor a 0.32, el agua entra al glóbulo rojo, haciendo que éste se hinche (turgencia) y rompa si el agua que entra es considerable (proceso de hemólisis). ESPERO QUE TE AYUDE :)
When a blood sample is placed in distilled water for two hours. The blood cells gained water because they were placed in a hypotonic solution. Thus, the correct option for this question is B.
What is a Hypotonic solution?A Hypotonic solution may be defined as a type of solution that possesses a lower osmotic pressure than the solution through which it is compared. This type of solution generally has a lower solute concentration.
Distilled water significantly behaves hypotonic to the red blood cells. Due to this, the red blood cells swell, and red-colored pigment known as hemoglobin leaks from it as a cell increases its size. Due to this, the color of the solution changes into transparent red-pink.
Therefore, when a blood sample is placed in distilled water for two hours. The blood cells gained water because they were placed in a hypotonic solution. Thus, the correct option for this question is B.
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Which of the following is/are not a condition affecting the Hardy-Weinberg equilibrium?Recessive traitsGenetic driftMutationNatural selection
Hardy-Weinberg equilibrium tells that the variation in genetics present in a certain population will remain constant in the absence of any disturbing events from one generation to another. Conditions that are not affecting this principle are natural selection, genetic drift, and mutation. These forces if present in a population will affect the equilibrium which is being maintained by this principle. and will eventually lead to an evolution. Natural selection is present when the organism adapt and change. Genetic drift is present when there are variants forms of genes. Mutation is present when there are permanent changes in the DNA sequence. These processes should be absent in order to mantain the principle of Hardy-Weinberg equilibrium.
Answer - recessive traits
Which of the following is not a function of the cardiovascular system?
What’s the correct answer answer asap for brainlist
Answer:
I think its b not 100% certain but its what I think it is.
Explanation:
Which of the following substances is not an element?Iron, oxygen, water, carbon,hydrogen
The substance that is not an element is water, it is formed by one atom of the element oxygen and two atoms of the element hydrogen.
The rest of the substances, iron, oxygen, carbon and hydrogen, are pure elements formed by equal atoms.
Round seeds are dominant over wrinkled seeds. Yellow seeds are dominant
over green seeds. Cross a round yellow seed, which is heterozygous for both
traits with a wrinkled green seed, which is homozygous for both traits. Show
your work.
Cross a round yellow seed, which is heterozygous for both traits with a wrinkled green seed, which is homozygous for both traits.
Fusion of gametes Yy (yellow seeded) and yy (green seeded)
Thus, in F1 generation the ratio of yellow seeded plants to that of green seeded plants is 50:50.This cross is called as test cross where F1 generation is crossed with recessive parent.
In other case When a homozygous yellow round seeded plant(YYRR) is crossed with another homozygous pea plant with green wrinkled seeds(yyrr). The offspring's formed in the F1 generations are heterozygous Yellow round seeds(YyRr)
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What are transposable elements and what is their significance?
Transposable elements are DNA sequences, genes. With the capacity to move inside the genome, that is to say, they can change their position in the genome by themselves. Due to this ability to change position, they have been widely studied, although many times insert themselves on inactive genomic regions, they have contributed to genetic diversity and generating polymorphisms, which in turn have an impact on the evolution. Also in a low percentage of cases can generate genetic illnesses in early embryonal states, like some ehemofilias or leukemias.
1. Which process happens when a
small root and stem begin to grow
out of a seed?
Answer:
Germination
Explanation:
The beggining growth of the plant
Answer:
Germination
Explanation:
It's when the seed takes water from the soil. This trigger root growth to allow the seed get more water. It then develops and grows towards the sun above ground