Meiosis occurs in a series of different phases and creates genetically unique reproductive cells. mc012-1.jpg which process make meiotic cells genetically different and occurs during prophase i, but not during prophase ii? fertilization independent assortment crossing over chromosome replication

Answer;

Crossing over

Explanation;

-Meiosis is the type of cell division that takes place in the germ line cells which results in the production of haploid cells called gametes.

-One of the advantage of meiosis is that it results to genetic variation thus creating genetically unique reproductive cell types. Genetic variation occurs due to the process of cross over in which homologous chromosomes exchange genetic materials through the chiasmata. It involves the exchange of segments of chromosomes between non sister chromatids.

crossing over

Explanation:

Meiosis is the process of cell division that originates haploid gametes from a diploid germline cell. Daughter cells not only possess half of the chromosomes than the mother cell but also the genetic composition of the chromosomes is different. The above is a consequence of the crossing over that generates recombination of DNA.

Crossing over  occurs when two homologous chromosomes break and exchange fragments of genetic material. This process occurs within the prophase 1 in meiosis 1, specifically in the pachytene phase. The exchange of genetic material between homologous chromosomes generates recombination of alleles. This causes that the genetic composition of the daughter cells chromosomes is different from the genetic composition of the mother cell chromosomes.

In other words, a chromosome that initially (in the mother cell) has alleles inherited exclusively from the father,  will have alleles from the mother in the gamete.

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