Determine the set of chromosomes in the gametes and in the cell after fertilization. In what form are chromosomes

Determine the set of chromosomes in the gametes and in the cell after fertilization. In what form are chromosomes in gametes? Why? What is the biological meaning of fertilization? What explains the similarities between parent and daughter organisms?

Before fertilization, the sex cells acquire a haploid set (n), in other words, half. For example, if the karyotype of an organism is 46 chromosomes, then the gamete will have a set of 23. When these germ cells meet and merge, the resulting zygote acquires a diploid set (2n).

The biological meaning of fertilization is in the restoration of the karyotype of a certain type of organism and procreation.

The similarity of daughter organisms is explained by the fact that they receive chromosomes with information from their parents.



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