WebHow do genetic factors, exposure to sunlight, and hormones determine the amount of melanin in the skin? a. Racial variations in skin color are determined by the amount and … WebOct 12, 2024 · To verify the gene's role in contributing to skin pigmentation, the researchers blocked expression of the gene in cells in culture and found an increase in production of …
Polygenic inheritance and environmental effects - Khan Academy
WebEye color is determined by variations in a person’s genes. Most of the genes associated with eye color are involved in the production, transport, or storage of a pigment called melanin. Eye color is directly related to the amount of melanin in the front layers of the iris. People with brown eyes have a large amount of melanin in the iris ... WebHow do genetic factors influence skin color? Genes control the amount of melanin the melanocytes produce. Which environmental factors influence skin color? Environmental … chill n go wine bag
Nature vs. Nurture: Genetic and Environmental Influences
WebJun 15, 2024 · In this review, we discuss what is currently known about the genetics of skin color variation. We enumerated several cases of skin color adaptation in global modern … WebSkin color is a complex trait. Unlike simpler, single-gene traits, complex traits arise from the contributions of many genes, as well as from environmental factors. In human populations, many genes with multiple alleles (genetic variants) affect skin color. WebHow do genetic factors influence skin color? a. Genes control the amount of melanin the melanocytes produce. a. Genes control the amount of melanin the melanocytes produce . 9. Which environmental factors influence skin color? a. Ultraviolet light from the sun or X-rays. a. Ultraviolet light from the sun or X-rays . 10. grace sickendick