Biology 1001A Chapter Notes - Chapter 10.2: Probability Distribution, Familial Hypercholesterolemia, Insulin Resistance
17 Oct 2016
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10. 2 a) in incomplete dominance, dominant alleles do not completely compensate for. If that one remaining functional allele can make enough product to compensate for the loss of the nonfunctional allele, then we call that dominance. Sometimes the one remaining functional allele cannot make enough product to compensate for the loss of the nonfunctional allele and the phenotype is somehow intermediate, then we call that incomplete dominance. The one allele cannot make enough product to make the organism black, so the organism turns gray. However, another situation might be that one allele makes black pigment and another allele makes white pigment, and the combination of those alleles expressed together creates an organism that is gray. Here, gray results from the expression of both alleles codominance (if a phenotype results from the expression of both alleles) Make sure you can distinguish incomplete dominance from codominance.
