Some organisms have abnormal sex chromosomes such as X (only have one X chromosome) or XXY (extra X chromosome).
What is the most likely cause of the abnormal sex chromosome?
Choose 1
(Choice A)
A
Nondisjunction occurred during meiosis
(Choice B)
B
An error occurred in mitosis of the fertilized egg
(Choice C)
C
Sex chromosomes in gametes are lost during fertilization
(Choice D)
D
A normal egg was fertilized by a haploid sperm
Answers: 1
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