Did the oldest rocks have little or no fossils

What are the types of mutations, and how does each alter the encoded protein? college level answer

Color blindness is a recessive trait. the gene for color blindness is on the x chromosome. the family tree below shows the trait of color blindness. the only unknown is the mother in the first generation

All individuals have two alleles for a given trait. according to mendel's these alleles are passed down one each from both mother and father.