Multiple Choice
Which of the following statements about humans is true?
A) The 23rd pair,the sex chromosomes,determines whether the person is female (XX) or male (XY) .
B) An ovum and sperm unite during fertilization,forming a haploid (n) ,single-celled zygote.
C) At sexual maturity,ovaries and testes produce diploid gametes by meiosis.
D) Human life cycles alternate between fertilization and meiosis,with meiosis producing haploid zygotes.
Correct Answer:
Verified
Correct Answer:
Verified
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