In the nuclei of the cells of the mucous membrane of the intestine of a vertebrate animal there are 20 chromosomes. how many chromosomes will the zygote nucleus of this animal have? 10, 20, 30 or 40?
The cells of the mucous membrane are somatic cells. These are the ones that shape the body. They contain a complete chromosome set. Gametes (sex cells) have half of the chromosomes. That is, the gamete of a given vertebrate animal will contain 10 chromosomes. Now let’s remember the definition of a zygote. It is a cell that is formed during the fusion of two gametes. It will accordingly contain 20 chromosomes. But sometimes malfunctions can occur and the number of chromosomes will be incorrect. Then pathologies arise.
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