Gametes, Genotypes, and Phenotypes
Sometimes, it is easier to determine how many possible phenotypes, genotypes, and gametes are available from the crossing of two parents. The equations are as follows:
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N is the number of heterozygous gene pairs. For instance, if a genotype is AaBbCc, n will be 3. However, if the genotype is AABbCC, the n is 1.
When analyzing two parents, it is easier to determine how many possible phenotypic and genotypic combinations of each gene pair, and then multiply them all together.
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All of this can be figured if there is no linkage.
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