A mutation to the p53 gene can cause what type of disease? -Cancer since the delay in the cell cycle is disrupted.
-Nondisjunction causing an abnormal number of chromosomes.
-Cystic fibrosis due to a mutation in the gene that codes for a specific protein.
-Sickle cell causing abnormally shaped red blood cells.

Red–green color blindness is an x-linked recessive trait in humans. polydactyly (extra fingers and toes) is an autosomal dominant trait. martha has normal fingers and toes and normal color vision. her mother is normal in all respects, but her father is color blind and polydactylous. bill is color blind and polydactylous. his mother has normal color vision and normal fingers and toes. if bill and martha marry, what proportions of children with specific phenotypes would they be expected to produce? the answers only include the proportions of some of the possible phenotypes; other phenotypes are also expected to occur but are not included.