Question

Which of the following statements apply to the variation in human skin color?

Select all that apply.
Select all that apply.
Human skin color variation likely evolved in response to differences in the intensity of sunlight around the world.
Human skin color variation is primarily determined by the type and amount of melanin pigment in the skin.
Variability in human skin color can be explained by the activity of a single gene.
Human skin color variation evolved recently in hominid evolution, once some populations of our human ancestors migrated out of Africa.
The color of human skin and the skin of our closest primate relative exhibits a similar range in variability.

Answer 1

The right answer is A, B, and D.

Over the millennia, the color of the skin of humans has adapted to the local sunshine.

A natural filter, melanin, has gradually developed under the influence of this selection pressure.

Melanin is a dark-colored pigment (from black to reddish brown) found in the skin, hair, hair and the membrane of the eye. The amount of melanin in an individual depends on several factors such as heredity, exposure of the skin to the sun (epigenetic factors) hormone levels or certain diseases.

Answer 2

The correct options are as follows:
1. Human skin color variation is primarily determined by the type and amount of melanin pigment in the skin.
2. Human skin color variation likely evolved in response to differences in the intensity of sunlight around the world.
3. Human skin color evolve recently in hominid evolution, once some population of human ancestor migrated out of Africa.
The color of human skin is primarily determine by melanin. The intensity of the sun in the climate where one is living also affect the type of skin color that will dominate in a geographical area.