The double helix model of DNA explained Chargaff's rules because adenine and thymine are found in one strand of the double helix and guanine and cytosine are found in the other strand. Therefore, the correct option is C.
Since adenine (A) always associates with thymine (T) and guanine (G) always associates with cytosine (C), the double helix model of DNA provided an explanation for Chargaff's rules. This complimentary base pairing allows the two strands of the DNA double helix to fit together. According to Chargaff's criterion, DNA contains an equal number of A and T as well as G and C atoms.
The DNA molecule can be stabilized by hydrogen bonds formed between A–T and G–C base pairs, as shown by the double helix structure. Given that A and T are located in one strand of the double helix and G and C are found in the other, the double helix model of DNA provides a structural basis for understanding why Chargaff's rules are valid.
Therefore, the correct option is C.
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A scientist crosses a plant with red flowers and a plant with white flowers. Each plant is pure for its trait for flower color. If the gene for flower color shows codominance, what coloring will the flowers on the offspring plants most likely have?
A. White and pink
B. White and red
C. Pink only
D. Red only
☆Pls Help Me Quick♡
wrong. the correct answer is B. white and red.
How are food webs related to energy flow within an ecosystem?
Explanation:
Each living thing in an ecosystem is part of multiple food chains. Each food chain is one possible path that energy and nutrients may take as they move through the ecosystem. All of the interconnected and overlapping food chains in an ecosystem make up a food web.
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The basis for naming GRAM STAINING BACTERIUM is as follows: Gram POSITIVE bacteria are GOOD bacteria and gram NEGATIVE bacteria are the BAD GUYS
Select one:
True
False
Answer:
true
Explanation:
(I think)
what are Genes , traits, proteins in order ? what comes first, middle and last? 20 points pls help
Answer:
Genes are hereditary, they are passed down from parent to offspring
Traits are genetically determined characteristics
Proteins are large complex molecules that play many critical roles in the body
The order is: genes, proteins, traits
Can humans alter biomes
Answer:
If we look at any of the forest biomes, humans alter these biomes by deforestation, accidentally introducing invasive species, hunting animals, polluting rivers, spraying pesticides, allowing livestock to graze in forests, and so forth. These changes may be on a small scale, or they may be on a larger scale
Explanation:
Bill knows the sequence of nucleotides for a gene. Which information could he determine with the most accuracy
ANSWER:
The primary structure of the protein
GIVE BRAINLIEST
pls anyone i need help
Answer:
Regulating the production of specific proteins
Explanation:
learned this along time ago give me brainliest if correct
Answer: I think the answer is c because chromosomes are like thread- like structures in which DNA is coiled around proteins that are called histones, which provides the structural support to an chromosome.
Explanation:
During the process of fertilization, which step happens first?
The sperm’s nucleus enters the oocyte cell.
Enzymes break down the protective layer of the oocyte.
A sperm attaches to an oocyte.
The plasma membrane of the oocyte changes.
List the ""traditional metals"" and ""critical metals"" that are cycled on Earth.
Answer:
Traditional: Nickel, Iron, Rhodium, Gold, Silver, Cooper, Scandium, Titanium, Vanadium, Manganese, Zinc and Mercury. Critical metals:hafnium, helium, indium, lithium, magnesium, manganese, niobium, platinum group metals Explanation:
What was the initial mental capacity of Dr. Taylor immediately after her stroke?
How does Dr. Taylor describe the “personality” of the right hemisphere?
How does Dr. Taylor describe the “personality” of the left hemisphere?
What category of stroke did Dr. Taylor experience, based on her description of how the stroke occurred?
After the stroke, Dr. Taylor assumed the mental capacity of a child. She describes the right hemisphere personality as a personality that worries about what is happening now, while the left hemisphere personality thinks of the past and the future. According to the description she had a hemorrhagic stroke in the left hemisphere of her brain.
This answer can be arrived at because:
Dr. Taylor suffered a stroke at age 37.After going through a slow recovery and overcoming the traumas of the experience, she was able to analyze the stroke and what it means more efficiently.According to her, she had a hemorrhagic stroke in the left hemisphere of her brain.This affected the personality of that hemisphere, which according to her is different from the personality of the left hemisphere.Dr. Taylor claims that during the stroke, she assumed the mental development of a child, the methodical and linear personality of the left hemisphere of her brain, was lost when the stroke hit her in that region.
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Apply What might happen if you took the pollen from a rose bush that has yellow flowers and put it on the pistils of a rose bush that has pink flowers?
Answer: varies
Explanation: It would make for a different type of flower reproduction.
Please help me with these muscle and bone questions ASAP.
Bones' hardness is made up of ________. Bones' crystals, layered for strength, gradually dissolve and are carried away by the bloodstream. They are replaced every ______.
The ______ is the most massive because it must support the upper torso and protect the spinal cord. It contains ______ vertebrae, separated by soft discs, and ends at the ______.
Muscles are "fired" _____, the action of coming from the attraction of different protein in their fiber. Muscle cells are as thin as hair and some are to _____ long. For maximum effort, muscles produce energy which doesn't require _____. _____ build-up causes pain and fatigue.
Answer: 1; framework of a protein called collagen , with a mineral called calcium phosphate
2; 1o years
Explanation:
1;The hardness and rigidity of bone is due to the presence of mineral salt in the osteoid matrix, which is a crystalline complex of calcium and phosphate (hydroxyapatite).
what are 3 careers in environmental science
Answer:
Environmental Scientist, Environmental Lawyer, Environmental Engineer
Explanation:
Answer: Botanist , Chemist, Ecologist
Explanation:
How much energy would an asteroid impact transfer to Earth's surface?
Answer:
Asteroid/Comet Impact Regional
Such a body is expected to hit the Earth about once every million years or so, and would release energy equivalent to about 10,000 megatons of TNT, a little greater than the energy released in a nuclear war, and enough to cause nuclear winter event (see graph above)
Explanation:
Asteroid/Comet Impact Global: 1 in 75,000
Asteroid/Comet Impact Regional: 1 in 1,600,000
Airplane Crash: 1 in 30,000
Firearms Accident: 1 in 2,500
During respiration, which reactant molecules do the C atoms in Co2 come from? Do they from the oxygen or the glucose
Answer:
This reaction shows that all of the atoms in the glucose and oxygen gas reactants are accounted for in the carbon dioxide and water products. The reactions of cellular respiration can be grouped into three stages: glycolysis, the Krebs cycle (also called the citric acid cycle), and electron transport.J
Explanation:
bc i know
all processing at the circuit level going up to the perceptual level must synapse in the ________.
Answer:
Q: all processing at the circuit level going up to the perceptual level must synapse in the _____
A: thalamus
An ecosystem is a(n) ________ system in terms of energy, and a(n) ________ system in terms of matter.
Answer:
An ecosystem is an open system in terms of energy, and an open system in terms of matter.
Explanation:
An ecosystem is an open system in terms of energy, and an open system in terms of matter. The correct option is A.
What is an ecosystem?An ecosystem is a geographical area in which plants, animals, and other organisms, as well as weather and landscape, coexist to form a life bubble.
An ecosystem is an open system in terms of both energy and matter.
Thus, A is the correct answer.
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The missing options of the question are:
A) open; openB) closed; openC) closed; closedD) open; closedE) open; partially closed
Based on the graphs shown, what would you conclude about the conditions under which enzymes function in cells?
Enzymes only function at a specific pH and temperature and cannot function over a range of pH or temperature.
Enzymes are most effective at a particular pH and temperature but can function over a range of pH and temperature.
Enzymes do not have a specific pH or temperature at which they are most effective but function optimally over a range of pH and temperature.
Enzymes work equally well at the low and high ends of their temperature range, but reaction rate drops quickly at the high end of their pH range.
Based on the graphs shown, it is possible to conclude that enzymes are most effective at a particular pH and temperature but can function over a range of pH and temperature. Enzymes speed up chemical reactions.
Enzymes are biological catalysts that speed up chemical reactions by lowering the activation energy of these reactions.
An enzyme works more efficiently at optimum pH and temperature values, which are specific for each enzyme.
Enzymes are denatured by extreme pH and temperature values because out-of-range values break down the hydrogen bonds that form the tertiary structure of the enzyme.
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Answer:
B
Explanation:
Enzymes are most effective at a particular pH and temperature but can function over a range of pH and temperature.
explain how cholinergic synapse functions
Answer:
Cholinergic synapses are miniature transducers that convert an electrical signal from the presynaptic nerve endings into a chemical signal (acetylcholine), which then diffuses across the synaptic cleft and triggers an electrical signal on the postsynaptic side by interacting with the same type of receptors that were used to generate the electrical signal on the presynaptic side.
Explanation:
Hope it helps:)
The Cholinergic synapses functioned by converting the presynaptic electrical signal into a chemical signal.
The Cholinergic synapses refers to the miniature transducers which can convert the electrical signal from the presynaptic nerve endings into a chemical signal (acetylcholine)
The conversion does lead to a diffuse across the synaptic cleft and triggers the electrical signal on the postsynaptic side by interacting with the same type of receptors that were used to generate the electrical signal on the presynaptic side.In conclusion, the Cholinergic synapses functioned by converting the presynaptic electrical signal into a chemical signal.
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what term describes all of the members of a species of mockingbirds that live in the same area of tampa?
All of these statements are incorrect EXCEPT: _______________
a. Right atrioventricular valve prevents the backflow of blood into the left ventricle when the ventricles relax.
b. Left atrioventricular valve prevents the backflow of blood into the left ventricle when the ventricles relax.
c. Aortic semilunar valve prevents the backflow of blood into the left ventricle when the ventricles relax
d. Pulmonary semilunar valve prevents the backflow of blood into the left ventricle when the ventricles relax
Answer: C
Explanation:
All of these statements are incorrect except Aortic semi lunar valve prevents the back flow of blood into the left ventricle when the ventricles relax. Thus, option C is correct.
What is the function of semi lunar valves?
The main function of semi lunar valves is that it allowed the blood to be pumped into the major arteries while preventing the back flow of blood from the arteries into the ventricles. The semi lunar valves allow blood to be pumped into the major arteries while preventing back flow of blood from the arteries into the ventricles.
The semi lunar valves has been located at the connections between the pulmonary artery and the right ventricle, and the aorta and the left ventricle. These valves has been allowed the blood to be pumped forward into the arteries, but prevent back flow of blood from the arteries into the ventricles. These valves do not have sub valvular apparatus and are more similar to the semi lunar valves in veins and lymphatic vessels than to atrioventricular.
Therefore, All of these statements are incorrect except Aortic semi lunar valve prevents the back flow of blood into the left ventricle when the ventricles relax. Thus, option C is correct.
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In order to run 200 m in 15 seconds, a runner must run at a speed of
Answer:
13.333 miles per hour
Explanation:
All you have to do is divide the speed to time, so 200/15 and you get 13.333
Hope you succeed in whatever your doing! <3
Answer:
13.333 mph
Explanation:
how does the founder effect contribute to genetic drift?
Answer:
The founder effect is another extreme example of drift, one that occurs when a small group of individuals breaks off from a larger population to establish a colony. ... These small colonies will be susceptible to the effects of genetic drift for several generations.
when oxygen is plentiful inside a skeletal muscle cell, what happens to the pyruvic acid that is formed during glycolysis?
Complete this sentence. Increased ____________ has led to less kelp growth and a decrease in the number and diversity of marine life using kelp forests as habitat.
nitrogen
carbon
salt
heat
Answer:
heat
Explanation:
carbon sometimes can be good for some plant life as it can convert it to oxygen
answer is heat just took the test
what are three examples of cellular respiration
Answer:
Lactic acid fermentation Alcoholic fermentationHelps in producing energy by the breakdown of glucose.Explanation:
Which of the following descriptions of the mediastinum is NOT true?
Answer:
b. is correct
Explanation: post protected
what step in photosynthesis may occur during day and night?
Answer: During the day, photosynthesis is dominant, so there is a net release of oxygen. At night, photosynthesis stops but respiration continues, so there is a net consumption of oxygen.
Explanation:
what are the two metabolic pathways a cell can use and what determines which pathway is used
Answer:
Anabolic and Catabolic pathways
Explanation:
The energy that an object has because it is moving
Answer:
kinetic energy
Explanation:
kinetic is when something is moving and potential is when an object isn't moving, but has the potential of having an increase in energy :)
