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Answer to Question #66574 in Genetics for jennifer lopez

Question #66574
Which statement describes how meiosis is a significant part of sexual reproduction?

a
Meiosis allows offspring to inherit genes of both parents, allowing for genetic diversity.
b
Meiosis ensures offspring will inherit all traits of both parents, helping the offspring survive.
c
Meiosis results in the cells of offspring having two sets of chromosomes from each parent.
d
Meiosis separates a cell into four different cells, each containing the same number of chromosomes as the original.
Expert's answer
a) Meiosis allows offspring to inherit genes of both parents, allowing for genetic diversity.
Meiosis produces cells (gametes) that have only one half of the chromosomes that can be found in non-gametes. Therefore, diploid organisms (like humans) produce haploid gametes. After the fertilization, genetic material from both gametes makes the new genome that contains genes from both parents and the total number of chromosomes in cells of the new organism is exactly the same that had its parents – two haploid gametes fuse and give diploid zygote. The new combination of different genes in one organism is a source of phenotypic diversity that is the basic material for evolution.

Source: Campbell Biology.

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