The nuclei from the approaching sperm and egg are called
A) mononuclei.
B) pronuclei.
C) gametocytes.
D) gametes.
Correct Answer:
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Q24: Human prenatal development takes _ weeks.
A)32
B)38
C)44
D)52
Q25: Crossing over occurs during
A)prophase I.
B)metaphase I.
C)prophase II.
D)metaphase
Q26: _ prepares sperm for penetration of the
Q27: By the end of meiosis I of
Q28: Primary spermatocytes develop from the division of
A)male
Q30: Fertilization usually occurs in the
A)ovary.
B)uterine tube.
C)uterus.
D)endometrium (uterine
Q31: In the first step in oogenesis
A)a primary
Q32: At the end of meiosis,the number of
Q33: During meiosis II in sperm development
A)primary spermatocytes
Q34: The stem cells from which sperm cells
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