How have the historic levels of melanin in human populations changed due to migration? (1 point)

Question

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

Answer 1

Humans that produced less melanin became more common as populations migrated away from the equator. This is because lower levels of melanin are advantageous in areas with less sunlight, allowing for better synthesis of vitamin D. Conversely, populations that migrated toward the equator tended to have higher levels of melanin to protect against the increased ultraviolet (UV) radiation.