The problem that occurred during meiosis in sperm formation was

A) nondisjunction involving a Y chromosome.
B) an inversion of the X chromosome, preventing the pairing of sex chromosomes.
C) failure of the second meiotic division to take place.
D) formation of diploid sperm.


Answer: A

Biology & Microbiology

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A) prometaphase B) anaphase C) interphase D) prophase E) telophase

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A sterile mule is produced by mating a horse and a donkey. This is an example of reproductive isolation.

A. prezygotic B. allopatric C. postzygotic D. sympatric E. parapatric

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