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 Form 4 Biology Genetics Questions and Answers

(a) What is meant by the term sex linkage?
(b) Name two sex linked traits in humans.
(c) In Drosophila Melanogaster, the inheritance of eye colour is sex linked. The gene of red eye is dominant. A cross was made between a homozygous red eyed female and a white eyed male. Work out the phenotypic ratio of F1 generation. (Use R to represent the gene for red eyes)

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