Scelta multipla
Which of the following is a disadvantage of sexual reproduction?
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12. Meiosis
Life Cycle of Sexual Reproducers
Scelta multipla
How many chromosomes are present in a human gamete?
A
22
B
23
C
46
D
24
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Understand that human cells are typically diploid, meaning they contain two sets of chromosomes, one from each parent. This results in a total of 46 chromosomes in most human cells.
Recognize that gametes (sperm and egg cells) are haploid, meaning they contain only one set of chromosomes. This is because they are produced through a process called meiosis, which reduces the chromosome number by half.
During meiosis, the diploid number of chromosomes (46) is halved to produce haploid gametes. Therefore, each gamete contains 23 chromosomes.
Remember that the 23 chromosomes in a gamete include 22 autosomes and 1 sex chromosome (either X or Y).
Conclude that the correct number of chromosomes present in a human gamete is 23, which is the haploid number for humans.
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