What kind of children can be born if the recessive gene for color blindness is located
May 26, 2021 | education
| What kind of children can be born if the recessive gene for color blindness is located on the X chromosome, and the gene for hairy ears is on the Y chromosome?
Given:
хА – healthy,
xа – color blind,
ya – hypertrichosis,
The solution of the problem:
R: female xаxa * male xАyа,
by Phenotype: color blindness; healthy with hypertrichosis,
G: xa; xA and ya
F1: xAxa; xаya,
by Phenotype: healthy woman; male color blind with hypertrichosis,
Answer: thus, hypertrichosis is located in the Y – chromosome, and therefore hypertrichosis occurs only in men.
If the father has good eyesight, then a girl with good vision will be born, that is, (xAxa) 50%, and the boy is color blind with hypertrichosis, that is (xaya) 50%.
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