Give examples of combinational variability arising from patterns of inheritance of traits identified by G. Mendel.

The basis of combinational variability is the sexual reproduction of organisms, resulting in a huge variety of genotypes. Almost unlimited sources of genetic variation are three processes: independent homologous chromosomes, mutual exchange of regions of homologous chromosomes, or crossing over, a random combination of gametes during fertilization.
The flower night beauty has a red gene for the petals A, and a white gene for a. Aa’s body has pink colored petals. Thus, the night beauty does not have a pink gene, pink color occurs when a combination of red and white gene.

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