In humans, brown eyes (B) is dominant to blue eyes (b). A brown eyed man marries a blue eyed woman. The possible eye colours of their children are:
Correct answer: D. Not enough information is given
- A. All brown
- B. Half brown
- C. 3/4 brown, 1/4 blue
- D. Not enough information is given
Explanation
Since we don't know whether the brown-eyed man is homozygous or heterozygous we cannot find the possible proportion of eyes color in their children.
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About Inheritance
Mendel's laws explain segregation, independent assortment and the prediction of genetic ratios using alleles, genotypes and phenotypes. The chapter also covers linked genes, recombination and crossing over during meiosis, then applies pedigree reasoning to X-linked recessive traits, which show different inheritance patterns in males and females.
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