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

Question

Which of the following statements apply to the variation in human skin color? Select all that apply.

1. Human skin color variation evolved recently in hominid evolution, once some populations of our human ancestors migrated out of Africa. 2. The color of human skin and the skin of our closest primate relative exhibits a similar range in variability. 3. Variability in human skin color can be explained by the activity of a single gene. 4. Human skin color variation is primarily determined by the type and amount of melanin pigment in the skin. 5. Human skin color variation likely evolved in response to differences in the intensity of sunlight around the world.

Explanation / Answer

1. Human skin color variation evolved recently in hominid evolution, once some populations of our human ancestors migrated out of Africa. (TRUE: Skin colour evolution occured aprrox 90,000-70,000 years ago)

(FALSE: Skin color gene shows pleiotropism where multiple genes produce one effect)

(TRUE: Melanin pigment determines the colour of skin)

1. Human skin color variation evolved recently in hominid evolution, once some populations of our human ancestors migrated out of Africa. (TRUE: Skin colour evolution occured aprrox 90,000-70,000 years ago)

2. The color of human skin and the skin of our closest primate relative exhibits a similar range in variability. (FALSE:The skin variation in primates it is controlled by by internal hormones as well as external conditions which is not similar to human) 3. Variability in human skin color can be explained by the activity of a single gene

(FALSE: Skin color gene shows pleiotropism where multiple genes produce one effect)

4. Human skin color variation is primarily determined by the type and amount of melanin pigment in the skin.

(TRUE: Melanin pigment determines the colour of skin)

5. Human skin color variation likely evolved in response to differences in the intensity of sunlight around the world.(TRUE: It deveoped due to differential exposure of human to varied enironment during their migration from evolutioanry origin-Africa)

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