Question

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Genetic Variation Over Time Quick Check
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Question
How have the historic levels of melanin in human populations changed due to migration? (1 point)
Responses

Humans that produced less melanin became more common as populations migrated away from the equator.
Humans that produced less melanin became more common as populations migrated away from the equator.

Humans that produced more melanin became more common as populations migrated toward the equator.
Humans that produced more melanin became more common as populations migrated toward the equator.

Humans that produced less melanin became more common as populations migrated toward the equator.
Humans that produced less melanin became more common as populations migrated toward the equator.

Humans that produced more melanin became more common as populations migrated away from the equator.
Humans that produced more melanin became more common as populations migrated away from the equator.
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Answer 1

The correct response to how the historic levels of melanin in human populations have changed due to migration is:

**Humans that produced less melanin became more common as populations migrated away from the equator.**

This is because higher melanin levels provide better protection against UV radiation found in equatorial regions, while lower melanin levels are beneficial in areas with less sunlight, as they allow for more efficient synthesis of vitamin D.