Crossing over occurs during ________ of meiosis ________.
A) prophase; I
B) metaphase; I
C) interphase; II
D) prophase; II
E) interphase; I
Correct Answer:
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Q46: Q47: Contraction of the cremaster muscles Q48: Contraction of the dartos muscle Q49: Interstitial cells Q52: In a mature human spermatozoan,the Q54: Where in the male reproductive system would Q55: A typical ejaculation releases approximately _ sperm. Q56: A vasectomy would interfere with a man's Q57: Figure 28-1 The Male Reproductive System Q74: Secondary spermatocytes each contain
A)tenses the scrotal
A)tightens the scrotal
A)are also called Leydig cells.
B)respond to
A)acrosome is next
A)1
A) 23 chromosomes.
B) 23
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