Are on chromosomes in the nucleus of a cell.
a. genes
b. alleles
c. traits
d. mutations

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

Could someone me with number one you

What molecule does hemoglobin decay into over time