F4-BIO-2.0.0 Evolution Questions
In Humans, hairy ears is controlled by a gene on the Y Chromosome.
(a) Using the letter YH to represent the chromosome carrying the gene for hairy ears, work out a cross between a hairy eared man and his wife. [4 Marks]
(b)
(i) What is the probability of the girls having hairy ears? [1 Mark](ii) Give a reason for your answer in b(i) above. [1 Mark]
(c)
(d)