If a zygote has the genotype XYY,how many total chromosomes were in the sperm before it fused with the egg?
A) 20
B) 21
C) 22
D) 23
E) 24
Correct Answer:
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Q25: You are tracking the inheritance of a
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Q27: A person with the genotype XO is
Q28: What is nondisjunction?
A)failure of sperm and egg
Q29: Which condition or disease is caused by
Q31: If more than one sperm fertilizes an
Q32: In a pedigree chart,a darkened square demonstrates
Q33: Down syndrome in humans is caused by:
A)an
Q34: The state of having more than two
Q35: Which of the following genetic disorders is
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