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evablogger [386]
2 years ago
7

Which of the following best describes the physical structure of a gene?

Biology
1 answer:
laiz [17]2 years ago
6 0

Answer:

The Correct answer is "A stretch of nucleotides within a larger DNA Molecule"

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Geneticists have determined that the majority of individuals in an isolated island population have blood type
oee [108]

Question continuation;

..........type B. Type A is found to be more common in the mainland population from which the island was settled.

How could a geneticist best explain the dominance of blood type B in the island population?


Multiple choices;

A. Random mutations have occurred in the island population.

B. Genetic drift has reduced the frequency of type A individuals.

C. Natural selection has only occurred in the mainland population.

D. Environmental conditions on the island are less favorable for type B individuals.


Answer;

B. Genetic drift has reduced the frequency of type A individuals.


Explanation;

-Genetic drift is a mechanism of evolution in which allele frequencies of a population change over generations due to chance.

-It occurs in all populations of non-infinite size, but its effects are strongest in small populations.

8 0
3 years ago
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Where is most of our nitrogen found? *
Anastasy [175]

Answer:

the atmosphere

Explanation:

6 0
3 years ago
If scientists wanted to learn more about evolutionary history, they would study all but one of these molecules. Which biological
Arada [10]
 If  scientists wanted to learn more about evolutionary history, they would study all but one of these molecules. The biological molecule  that would NOT offermuch information about the history of life is

<span>phospholipids

</span>the DNA proteins and nucleic acid will give them alot of information about history of life
so correct option is D
hope it helps

5 0
3 years ago
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Which of the following is true of skeletal muscles?
Bingel [31]
The answer is:
C) Skeletal muscles are an example of voluntary muscle

Hope this helps. 

6 0
3 years ago
1. What percent of people in the U.S. use groundwater?​
SpyIntel [72]

Answer:

53%

Explanation:

3 0
3 years ago
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