What offspring can be expected in a marriage between a heterozygous female carrier of color blindness
| April 30, 2021 | education
What offspring can be expected in a marriage between a heterozygous female carrier of color blindness and a man with normal vision? The recessive sign of color blindness is sex-linked and located on the X chromosome.
1) Let XD – normal color vision, Xd – color blindness.
2) Find the genotypes of both parents.
The mother is heterozygous, her genotype is XDXd, her father is XDU.
3) Crossing scheme:
Parents: XDXd x XDU,
Gametes: XD, Xd x XD, Y,
Probable children: XDXD (girl with normal vision), XDU (boy with normal vision), XDXd (girl carrying the color blindness gene, XdU (color blind boy).
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
