Question

(a) E is the gene for brown eye colour and and e is the gene for blue eye colour. which gene is (i) recessive, and (ii) dominant?
(b) Both father and mother have the genes Ee in their cells. What colour are their eyes?
(c) Which combination of genes in the zygote will produce children with blue eyes?
(d) Which combination of genes in the zygote will produce children with brown eyes?

Answer 1

(a) (i) e is recessive; (ii) E is dominant
(b) The colour of their eyes is brown.
(c) Combination ee will produce children with blue eyes.
(d) Combination EE or Ee will produce children with brown eyes.