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WITCHER [35]
3 years ago
7

A teacher modeled part of a DNA molecule using two of these coiled springs. Which part of the DNA was the teacher most likely mo

deling?​
Biology
1 answer:
Vinil7 [7]3 years ago
3 0

Answer: The part of DNA that the teacher was modelling would be the backbone of DNA.

Explanation:

The DNA is made of double helical structure which is twisted. In the structure of DNA two strands are coiled among each other.

The DNA consists of the nitrogenous bases, phosphate groups and deoxy-ribose sugar.

The backbone of DNA is made up of sugar( alternating )and phosphate group.The nitrogenous bases such as adenine, cytosine ,guanine and thymine are joined to the deoxy-ribose sugar.

This backbone part was part that the teacher was making as a model by using two coiled springs.

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The following health statistics are available on the Internet for country Z about two disease outcomes. Disease A has an annual
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The burden of diseases A and B in country Z is that disease B has a higher prevalence than

disease A. That is option D.

<h3>Health statistics of Country Z</h3>

Health statistics is used by professionals to summarize the health status or information on the health of individuals in a particular geographical location.

The basic statistic tools that can be used to check the health status of a population are,

  • prevalence

  • Case fatality ratio

The prevalence rate is the total number of cases of a disease existing in a population divided by the total population.

The prevalence rate of disease A = 225 per 100,000 population while the prevalence rate of disease B = 500 per 100,000 population.

Therefore, the burden of diseases A and B in country Z is that Disease B has a higher prevalence than

disease A.

Learn more about prevalence here:

brainly.com/question/25151633

7 0
3 years ago
PLEASE I NEED HELP!!!
Masteriza [31]

Answer:

Nonrenewable energy resources, like coal, nuclear, oil, and natural gas, are available in limited supplies. This is usually due to the long time it takes for them to be replenished. Renewable resources are replenished naturally and over relatively short periods of time.

Explanation:

3 0
3 years ago
Explain the difference between respiration and breathing?
NARA [144]
The difference between respiration and breathing is their functions. Breathing is when your body uses your lungs to inhale and exhale oxygen. Respiration is a chemical reaction where your body uses oxygen to eliminate or break apart Glucose so it could give you energy.

Hopefully this helps :)
4 0
3 years ago
If a strand of DNA has the nitrogen base sequence, GCTAGATGCG, what will be
pishuonlain [190]

Answer:

CGATCTACGC

Explanation:

8 0
2 years ago
The antigen-binding sites of an antibody molecule are formed from the molecule's variable regions. why are these regions describ
tino4ka555 [31]

The antigen-binding sites of an antibody molecule are formed from the molecule's variable regions which are described as so because their amino acid sequences can be different on different antibodies.

The specificity of antibodies is determined by the variable regions found at their endpoints. Antibodies are specialized proteins secreted by B-cells of the immune system. They are also called immunoglobulins. They contain four polypeptide chains that comprise two heavy chains and two light chains to form a Y-shaped molecule.

The variable regions, more specifically the hypervariable regions of an antibody, have a high ratio of different amino acids with the most common amino acids provided in one place. The variable region serves as the antigen-binding site while the constant region found below the variable region is determined to invade the antigen.

Antibodies are preserved in our body to identify the antigen the next time it encounters. They send the signals to the other body parts to reject the antigen and invade it.

To know more about variable regions of antibodies, refer to the following link:

brainly.com/question/17439586
#SPJ4

8 0
2 years ago
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