Question 21
As human migrated away from the equator, what may have been a selective
pressure against more melanin?
Cold weather and too much body hair
Lower UV radiation and more DNA mutations
Higher UV radiation resulting in more vitamin D synthesis
Lower UV radiation resulting in less vitamin D synthesis

Question

michael84623745 michael84623745

12-03-2022
Biology

contestada

Question 21
As human migrated away from the equator, what may have been a selective
pressure against more melanin?
Cold weather and too much body hair
Lower UV radiation and more DNA mutations
Higher UV radiation resulting in more vitamin D synthesis
Lower UV radiation resulting in less vitamin D synthesis

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HarisSelimovic HarisSelimovic · Answer 1 · 2022-03-12T19:29:27+01:00

Answer:

Higher UV radiation resulting in more vitamin D synthesis.

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Thanks!

Explanation:

Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years.

Vitamin D is the sunshine vitamin that has been produced on this earth for more than 500 million years.During exposure to sunlight 7-dehydrocholesterol in the skin absorbs UV B radiation and is converted to previtamin D3 which in turn isomerizes into vitamin D3.