In other words, the distribution of one pair of alleles does not influence the distribution of another pair. The genes controlling different traits are inherited independently of one another. During gamete production, the members of each gene pair separate, so that each gamete contains one member of each pair. During fertilization, the full number of chromosomes is restored, and members of gene pairs are reunited. Probability is usually expressed as the ratio of the number of actual occurrences to the number of possible occurrences.
Proteins can serve a wide variety of functions through their ability to bind to other molecules.
Proteins may be enzymes, hormones, antibodies, structural components, or gas-transporting molecules. It affects men and women equally. This trait is subject to genome imprinting . Punnett square a simple graphical method of showing all of the potential combinations of offspring genotypes that can occur and their probability given the parent genotypes. See example on the right.