Biology, 05.03.2021 21:10, samarkanduzbek
In humans, as well as in many other animals and some plants, the sex of the individual is determined by sex chromosomes. The sex chromosomes are one pair of non-homologous chromosomes: XX represents a female, while XY represents a male. When a gene for a specific trait is attached to the X or Y chromosome, we say it is sex-linked, and when it is attached to the X chromosome, we say it is X-linked. Alleles for these linked traits, such as hemophilia or color blindness, crosses, may be recessive or dominant.
This is one possible cross (above) for the X-linked condition known as hemophilia. Which pair of parents is most likely to have a hemophiliac daughter?
A. unaffected, non-carrier mother and hemophiliac father
B. hemophiliac mother and a carrier father
C. carrier mother and unaffected father
D. carrier mother and hemophiliac father
(forgot to put the options in my last post)
Answers: 2
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In humans, as well as in many other animals and some plants, the sex of the individual is determined...
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