need help in Biology can someone Explain why polygenic traits are expressed through quantitative variation, using skin color as an example.?
- Asst ProfLv 75 years ago
Imagine that there are 5 genes controlling skin color, and the more dominant alleles there are, the darker the skin. AABBCCDDEE would be the genotype for the darkest skin, while aabbccddee would be the lightest skin. AaBbCcDdEe would be the most moderate skin color.