Multiple Choice
In humans, how many chromosomes are present in a mature egg cell (secondary oocyte) after meiosis has reduced the chromosome number?
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17. Meiosis and Sexual Reproduction
Meiosis
Multiple Choice
In humans, how many chromosomes are present in a mature sperm cell produced by meiosis?
A
22
B
92
C
23
D
46
Verified step by step guidance1
Understand that human somatic cells are diploid, meaning they contain two sets of chromosomes, one from each parent, totaling 46 chromosomes.
Recall that meiosis is the process by which germ cells (sperm and egg) are produced, and it reduces the chromosome number by half to create haploid cells.
Recognize that a mature sperm cell is a haploid cell, so it contains only one set of chromosomes.
Calculate the number of chromosomes in a mature sperm cell by dividing the diploid number (46) by 2, which gives the haploid number.
Conclude that the mature sperm cell contains 23 chromosomes, which is the haploid number in humans.
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