Multiple Choice
What is the most likely explanation for a baby boy to have Tay-Sachs disease when the child's mother is not a carrier for the problem, but the father is a carrier?
A) The mother is not really the biological parent of this child.
B) The mother's normal gene allele is not expressed, and the father's Tay-Sachs allele is expressed.
C) A new mutation occurred in the father's sperm in which the Tay-Sachs gene has become dominant.
D) The father's Tay-Sachs gene has been translocated from its usual locus to the Y chromosome and thus is expressed in any male child.
Correct Answer:
Verified
Correct Answer:
Verified
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