The number of sperm cells in an ejaculation averages
A) 2,000 to 6,000.
B) 20,000 to 60,000.
C) 200 to 600 million.
D) 200 to 600 billion.
Correct Answer:
Verified
Q15: The male and female reproductive systems of
Q16: The number of possible chromosome combinations in
Q17: The first cell that leads to development
Q19: Which is a characteristic of seminal fluid?
A)It
Q19: Synapsis occurs during
A)prophase I.
B)metaphase I.
C)anaphase I.
D)telophase I.
Q21: After the second meiotic division,the number of
Q22: A normal oogonium is a(n)_ cell.
A)diploid
B)aneuploid
C)polyploid
D)triploid
Q23: Meiosis in females
A)is completed only if an
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
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