In human beings, males typically have one X and one Y chromosome, and females ty
ID: 66037 • Letter: I
Question
In human beings, males typically have one X and one Y chromosome, and females typically have two X chromosomes. "Colorblindness" in humans is caused by a recessive allele of gene on the X chromosome.
Fill in the blanks.
A human female typically possesses _________ allele(s) for this color vision gene, which she inherits from ________.
Question 22 options:
2, her mother only
1, her father
1, her mother
2, her mother and father (one from each)
2, her father only
2, her mother only
1, her father
1, her mother
2, her mother and father (one from each)
2, her father only
Explanation / Answer
2, her mother and father (one from each)
A female has XX genotype. One X is from father and the other X from the mother