Recombination is the procedure by which DNA fragments are disrupted and recombined to generate new allele combinations. This recombination mechanism generates genetic diversity at the gene level that reflects variations in the DNA sequences of various organisms.

The chromosomes found in the cell nucleus of humans are organised as strings of genes. Each human cell contains 46 chromosomes, arranged into 23 pairs.

In terms of heredity, recombination is any process that produces gametes with allele combinations that were absent in the gametes of previous generations.

Interchromosomal recombination takes place between independently assorted alleles with loci on distinct chromosomes. Crossover among loci within identical chromosomes results in intrachromosomal recombination. It’s essential to keep in mind that recombination takes place during meiosis in both of these situations.

The products are considered to have a recombinant genotype if meiosis leads to recombination. If no recombination takes place during meiosis, the resulting products retain their initial combinations and are referred to as having a non-recombinant genotype (parental genotype).

Related Links:

• Linkage and Recombination
• Difference between Linkage and Crossing Over
• Determination of Sex

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