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Self Assessment Question # 5
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by Dr Jamie Love
© 2002 - 2010
Genetics Course
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Self Assessment Question # 5
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© 2002 - 2010
Assume a human sperm cell, carrying 22 autosomes and both an X chromosome and a Y chromosome, fuses with a normal human egg carrying 23 chromosomes, including the X chromosome.
What will be the sex of the child?
How many Barr bodies, if any, will the child have?
If that child were able to make gametes - s/he cannot, but assume s/he can - what combination of sex chromosomes would be possible in the gametes. (Ignore the autosomes, just tell me what sex chromosomes could be in the gametes.)
What would be the composition of each zygote produced if each gamete, above, fertilized another gamete with an X chromosome and the normal complement of 22 autosomes?
Go to the ANSWER