A married couple both have normal color vision, but their son has red-green colorblindness, a X-linked recessive trait. How is this possible?

In a cross between a white-eyed female fruit fly and pure red-eyed male, what percent of the male offspring will have white eyes? (White eyes are X-linked and are recessive.)

What symbol on a pedigree chart would show a female that is colorblind?

A test is done on a developing fetus (baby). The fetus has two X chromosomes. Which of the following is definitely true?

What shows the possible genetic combinations from the parent to the offspring?

A woman is heterozygous dominant for brown eyes. Will any of her children have blue eyes?

Sometimes a blending of traits occurs. When a white flower is crossed with a red flower, the resulting flower is pink. This is an example of ?

A special kind of cell division in which gametes are formed is called

Who would be an example of a boilogical son?

How many pairs of chromosomes do boys have?

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