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Nadya [2.5K]
2 years ago
15

How does the fact that telomeres are long stretches of repeated nucleotides lessen the impact that somatic cells don’t have te

lomerase?
Biology
1 answer:
Cloud [144]2 years ago
4 0

Telomerase activity is controlled during development and is extremely low in somatic (body) cells, virtually undetectable. These somatic cells age because they do not frequently use telomerase.

  • Telomeres are repetitive sections at the very ends of chromosomes that are present in a variety of eukaryotic species, including humans and unicellular protists.
  • Each round of DNA replication wears down a little portion of the telomeres, which serve as caps to safeguard the interior chromosomal regions.
  • Most somatic (body) cells do not typically have telomerase activity, but certain adult stem cells and germ cells—the cells that produce sperm and eggs—have.
  • Adult germ cells, tumor cells, and fetal tissues all contain telomerase. Telomerase activity is controlled during development and is extremely low in somatic (body) cells, virtually undetectable. These somatic cells age because they do not frequently use telomerase.

learn more about telomerase here: brainly.com/question/14213408

#SPJ4

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Answer:

The correct answer would be efferent neurons.

Efferent neurons are the motor neurons which communicate information in the opposite direction as compared to the afferent neurons, that is, they communicate information or response impulses from the brain or central nervous system to the muscles or glands.

The response impulses results in the movement of the muscles or activation/deactivation of certain gland

In contrast, afferent neurons are the sensory neurons which carry impulses from the receptors to the central nervous system.

5 0
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3 0
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slamgirl [31]

Answer:

Option (1).

Explanation:

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Thus, the correct answer is option (1).

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3 years ago
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Explanation: The two lowercase letters indicate that there are two recessive genes. If there is one uppercase letter and one lowercase letter, that would mean that it is heterozygous (as there is one dominant and one recessive gene).

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