In humans, colorblindness is a recessive, sex-linked trait. What is the likelihood that the children of a woman heterozygous for colorblindness and a man with normal color vision will be colorblind?

1. isogamy 1 organisms with gametes of the same size and shape 2. anisogamy organisms with gametes of different sizes and shapes 3. oogamy 2 organisms with gametes of the same shape but different sizes 4. gonads gamete-producing organs in lower plants 5. gametangia gamete-producing organs in animals