Answer:
22%
Explanation:
According to Erwin Chargaff in his complementary base pairing rule, a DNA molecule consists of four nucleotide bases that pair with one another in the follow order: Adenine (A) to Thymine (T), and Guanine (G) to Cytosine (C).
According to Chargaff, the amount of Adenine in the DNA equals the amount of Thymine while the amount of Guanine in the DNA equals the amount of Cytosine. The sum of all the bases equals 100%. That is;
A + T + G + C = 100%
In this question, if 28% of the bases in a DNA strand are Guanine, the amount of Cytosine will also be 28%. Hence,
28% + 28% + A + T = 100
56% + A + T = 100
A + T = 100% - 56%
A + T = 44%
Since, A = T
A/T = 44/2
A/T = 22%
Hence, the amount of Thymine in the DNA strand will be 22%
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Answer:
An important term in genetics that was not used by Mendel was the word "gene", a particle of the chromosome responsible for the traits of a living being. The molecule discovered by Oswald Avery - related to genes and inheritance - was DNA, a discovery he made in 1944.
Explanation:
Despite being considered the father of genetics and providing important information about the inheritance of traits, Mendel did not go so far as to use the term "gene," which is where the alleles responsible for those traits reside. The term "gene" was first used by another botanist, Wilhelm Johanssen, who in 1909 proposed the use of the word gene as the name of the particle responsible for inheritance.
In 1944, the Canadian physician Oswald Avery, faced with the mistaken belief that genes were found in proteins, proposed an experiment where he discovered that the molecule responsible for heredity was deoxyribonucleic acid, or DNA.
What holds the two strands of the DNA double helix together?
A.Weak hydrogen bonds
B. Strong hydrogen bonds
C. Weak covalent bonds
D. Strong covalent bond
Answer:
B.Strong hydrogen bonds
Explanation:
The deoxyribonucleic acid (DNA) molecule consists of two chains or strands of nucleotides that are held together in a double helix by hydrogen bonds between the bases of the nucleotides.
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Answer:
1) Nerve cells process the info.
2) Nerve impulses send signals to the brain.
3) Brain processes the information.
4) Chemical stimulate odor receptors.
5) Oder receptors store memory.
6) Memory is stored!
How many neutrons does the element sodium (Na) contain?
a
12
b
11
c
13
d
23
Answer:
a) 12 neutrons
Explanation:
The atomic mass is 22.990, which can be rounded to 23 and is the combination of protons and neutrons. The atomic number is 11 (protons), and 23-11=12, whoch would be the neutron number
Hope this helps :)
Please select the word in parentheses that fits the sentence:
A catalyst [weakens/strengthens] the bonds of the reactants [increasing/decreasing] the activation energy.
Answer:
Weakens and Lowers activation energy
Explanation:
1) What two problems does the transfer of information from DNA to protein need to overcome?
Clues:
a. DNA is made of nucleotides.
b. Protein is made of amino acids.
c. DNA is located exclusively in the nucleus.
d. Protein is synthesized exclusively in the cytoplasm.
Answer:
The two problems that the transfer of information from DNA to protein must overcome are:
How to bring the information from the nuclear DNA to the place of protein synthesis?How to convert this DNA information into amino acids and then into proteins?Explanation:
The genetic information is found in the DNA and depends on a specific sequence of nitrogenous bases. This information is transcribed into the messenger RNA, whose base sequence is organized into triplets and codons, each of which encodes an amino acid, as well as establishing the pattern for starting and stopping the synthesis of a protein.
How to bring the information from the nuclear DNA to the place of protein synthesis?The DNA must be transcribed into messenger RNA (mRNA), a process that occurs in the nucleus of the cell. mRNA leaves the nucleus and travels to the cytoplasm, where amino acid synthesis will take place.
How to convert this DNA information into amino acids and then into proteins?Once in the cytoplasm mRNA binds to ribosomes, structures in charge of translating the sequence of nitrogenous bases RNA to synthesize amino acids. The set of ribosomes and rough endoplasmic reticulum are in charge of the assembly of amino acids to produce peptides and proteins.
limiting factors operate when growth is exponential (true or faulse)
Answer:true
Explanation:
Index fossils are the remains of species that existed on earth for relatively short periods of time. True or False? Why
Answer:
Depends
Explanation:
Because some animals or things that left fossils behind might have been there since the beggining of time and some just so happened to develp over time -like dinos im guessing.
What is the difference between aerobic respiration and anerobic respiration?
1.) Aerobic respiration produces ATP, and anaerobic respiration does not.
2.) Anaerobic respiration produces ATP, and aerobic respiration does not.
3.) Anaerobic respiration uses oxygen, and aerobic respiration does not.
4.) Aerobic respiration uses oxygen, and anaerobic respiration does not.
Answer:
The difference is C
Anaerobic respiration uses oxygen, and aerobic respiration does not.
Explanation:
The difference between aerobic respiration and anaerobic respiration is that aerobic respiration uses oxygen, and anaerobic respiration does not. The correct answer is option 4.
Glycolysis is the first step in cellular respiration and can take place with or without oxygen.
Anaerobic respiration is cellular respiration that takes place without oxygen. Aerobic respiration is the type of cellular respiration that takes place when there is oxygen present. Aerobic respiration developed first, then anaerobic.
During aerobic cellular respiration, glucose and oxygen combine to create ATP, which the cell can utilize. As byproducts, carbon dioxide and water are produced.
Without oxygen, organisms must manufacture ATP by anaerobic respiration, which yields just two ATP molecules for every glucose molecule. Anaerobic respiration has the advantage of producing ATP relatively quickly despite producing less of it.
To learn more about anaerobic and aerobic respiration:
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hurry due in five min plz help
Answer:
b
Explanation:
Answer:
d
Explanation:
I hope that helped!
Use the results of Demetri's experiment to explain why the color changed on some test strips but not others.
Answer:
I think it was the same due to all the tubes havign gluscoes in them. I think thats right.
Explanation:
Help please
I’m begging you, due in an hour
Answer:
1 should be D and 2 should be A
Can water speed up the movement of food and waste through the digestive system
Answer:
No
Explanation:
Find the area of a circle with diameter 20cm and the advantages and
Which of the following statements are true? (Select all that apply.)
Government health insurance plans are typically more expensive than private plans.
Private health insurance plans are typically more expensive than government plans.
Government health insurance plans target specific groups of patients, such as the elderly, veterans,
or children.
Private health insurance plans target specific groups of patients, such as the elderly, veterans, and
children
Answer:b and c
Explanation:
Edg 2020
The true statements are:
Government health insurance plans target specific groups of patients, such as the elderly, veterans, or children.
Private health insurance plans target specific groups of patients, such as the elderly, veterans, and children.
These sentences properly describe government and private health insurance. Medicare and Medicaid cover the elderly, low-income, and other categories. Insurance companies offer private health insurance plans to certain groups with varied coverage options and costs based on demographics and demands.
The question does not provide enough information to compare government and private health insurance costs. Coverage, geography, age, and individual circumstances affect costs. Thus, comparing government and private plan costs is inaccurate.
Learn more about health insurance, here:
https://brainly.com/question/14876522
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How do elephants contribute to the biodiversity of their environment?
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Answer:
They are also keystone species, playing an important role in maintaining the biodiversity of the ecosystems in which they live. During the dry season, elephants use their tusks to dig for water. ... Wherever they live, elephants leave dung that is full of seeds from the many plants they eat.
Explanation:
Can someone help me?
Answer:
A Genotype is a genetic constitution of an individual organism.
Can someone help me? I don’t understand this.
A) How are traits inherited in this pedigree? (the one in the image)
B) What is your evidence?
Answer:
dude bottom is right
Explanation:
A truck carrying fertilizer crashed near a stream within a few miles from this karst feature. The fertilizer spilled into the stream and was carried towards the sink hole. What effect will this have on the karst aquifer? Would you want to drink water from this aquifer?
Answer:
Eutrophication effect
Explanation:
The term eutrophication refers to the enrichment of surface water with nutrients. This process is related to human pollution activities.
Eutrophication is the biological process that generates in water by an oversupply of nutrients or organic matter. This matter, mainly compounded with nitrogen or phosphorous, favors the multiplication of phytoplankton (microscopic plants growing on the water surface) and other aquatic plants. This overgrowth leads to an enhance in primary productivity.
Little by little begin sedimentation, caused by the death of some vegetable organisms that sink in the bottom. These sediments rich in organic matter suffer decomposition in the presence of oxygen.
When oxygen disappears, anaerobic bacteria act and produce fermentation.
On the surface, plants and phytoplankton keep growing, creating a mantle that impedes the light to reach deeper areas. The overgrowth of phytoplankton on the water surface and the fermentation processes in the bottom originate toxic compounds that damage the animals. Animals die, creating more sediments in the bottom where there are anaerobic conditions. Decomposing processes and fermentation increases, producing a bad smell.
The result of eutrophication is the stratification of the water mass:
First superficial layer, the overgrowth of blue-green algae produce toxins and interrupt the pass of light to deeper areas. The surface then becomes warmer. The second layer might have oxygen available for the animals.In the third layer, there is no oxygen, so life is not possible for animals or plants.In the fourth layer, there are animals and plants remains in the process of sedimentation.At the bottom, there is organic matter and anaerobic bacteria that are in charge of decomposition and fermentation, also producing toxic gases and smell.
Which of the following qualifications is the same for both Senators and Representatives?
You must have a college degree.
You must be a Christian.
You must be a legal resident of the state you represent.
You must be at least 30 years old.
Answer:
You must be a legal resident of d state u represent
Explanation:
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Is made to represent a real object or system
Map
Chart
Table
Line graph
Model
is Organic Really Better? Healthy Food or Trendy Scam?
Answer:
It is better
Explanation:
It tastes better :)
And it has no pesticides
Answer:
♡ hi darling ♡
- Organic is great. Infact, I actually eat organic food for a living. Even the oreos are good, they taste better and it's better for you tbh. It helps you be more healthier but your still enjoying it because it's not like celery all day or something.
have a great day.
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Which of the following best explains why enzymes are necessary for many cellular reactions?
a.Enzymes supply the oxygen necessary for the reactions.
b.Enzymes change reactants from solids to liquids during the reactions.
c.The reactions take up too much space in the cell if the enzymes are missing.
d.The reactions are too slow to meet the needs of the cell if enzymes are mis
Answer:
C. The reactions take up too much space in the cell if the enzymes are missing.
Explanation:
can someone help me please
Answer:
J) Providing information to form proteins
Explanation:
Messenger RNA (mRNA) is the molecule that links genes to proteins. Efficient and smooth interactions of the molecules of life allow us humans to function well. ... This process is called gene expression.
I need help on this I am confused
Answer:
I don't see the last image after the snake. Anyway, I would say C because the Snake would eat more Toads, so Snake population would increase.
A ball at rest starts rolling down a hill with a constant acceleration of 3.2 meters/second2. What is the final velocity of the ball after 6.0 seconds?
Answer:
19.2 meters/second^2 would be the correct answer.
Explanation:
what is the percentage of thymine in cow ?
Answer:
Together, adenine and thymine compose 70% of the segment. This means that 30% of the section is composed of guanine-cytosine pairs. Since these two bases will be equal in quantity, 15% of the DNA section will be cytosine bases.
Explanation:
Answer:
28% thymine in cows
Since 28% adenine and 22% guanine and 22% cytosine
What is the difference between abiotic and biotic?
Answer:
Abiotic factors refer to non-living physical and chemical elements in the ecosystem. ... Examples of abiotic factors are water, air, soil, sunlight, and minerals. Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction.
Explanation:
Critical thinking : Do magnets need to touch a piece of iron or another magnet to exert a magnetic force on the iron or other magnet?
Answer:
I wouldn't think so because it is the magnetic field that Attracts and repels. When iron is magnetised to something don't the molecules lineup in the North the South pattern or something like that to create a magnetic field and stick together.
I might be wrong because this is my personal opinion on the matter.
Answer:
no because the magnetic force attracts the magnet or the iron to it
Explanation:
What type of organism carries out photosynthesis?
A) autotroph
B) heterotroph
C) prokaryotes
D) eukaryotes
Answer: A) autotroph
Explanation:
Answer:
autotroph
Explanation:
what type of carbon sink does the author propose people use?
Answer: Underground facilities that previously contained fossil fuels
Explanation:
In the attached passage, the author speaks on how natural carbon sinks such as trees and oceans can not be trusted with holding Carbon dioxide indefinitely because oceans are reaching their holding limits and trees are being cut down on a massive scale.
The author suggestion to mitigate this is to convert underground facilities such as oil and gas wells that previously held fossil fuels until they were pumped out. The author claims that the technology to do so is already present and that there are ways this could be made inexpensive.