Through his observations made in the galapagos islands, formulated a theory of how species change over time, called natural selection.

In familial hypercholesterolemia individuals homozygous for the allele causing the disorder completely lack receptors on liver cells that take up cholesterol from the blood stream. heterozygous have one-half the number of receptors while individuals homozygous for the normal allele are phenotypically normal. this is an example of a.epistasis b.complete dominance c. incomplete dominance d. codominance

Which of the following is an oxidation-reduction reaction? (pictured below)

Complete the possible outcomes for each generation in the pedigree chartaa aa aa