In humans, myopia dominates normal vision, and brown eyes over blue. the genes that control these traits are located

| January 17, 2021 | education

In humans, myopia dominates normal vision, and brown eyes over blue. the genes that control these traits are located on different chromosomes. what children will be in the family where the father is diheterozygous and the mother has brown eyes, heterozygous and normal vision.

Given: A – myopia, a – normal vision, B – brown eye color, b – blue eye color
Find: F1
Decision:
R: aaBb – AaBb
G: (aB), (ab); (AB), (Ab), (aB), (ab)
F1: AaBB (myopia and brown eyes), AaBb (myopia and brown eyes), aaBB (normal vision and brown eyes), aaBb (normal vision and brown eyes), AaBb (myopia and brown eyes), Aabb (myopia and blue eyes ), aaBb (normal vision and brown eyes), aabb (normal vision and blue eyes).
Answer: the probability of having a healthy baby is 50%, the probability of having a brown-eyed baby is 75%.

 



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