Aman and woman have a son who is color blind, a recessive sex-linked trait carried on the x-chromosome, but neither parent is color blind. the woman is now pregnant with their second child. which of the following statements is true about the second child?

Where do the respiratory and circulatory systems meet? a. in the heart b. in the muscles c. in the lungs d. in the brain

Environmental impacts on evolution : mastery test

Suppose you have monohybrid pea plants in your garden and find that they produce round seed to wrinkled seeds in the ratio of 3: 1. if the allele are designated (r & r) receptively. what is the probable genotypes of the round seeds which produced f 1 ? rr & rr rr only rr & rr rr only rr only