Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Fruit flies can have straight wings (S) or curly wings (s), and they can have be female XX or male XY.
(A) For a standard monohybrid cross (Ss ´ Ss), what proportion of the offspring will have the genotype ss? (Express the proportion as a simple fraction)
(B) For the following cross (SsXX ´ SsXY), what proportion of the offspring will have the genotype Ss? (Express the proportion as a simple fraction)
(C) What proportion will have the genotype XX? (Express the proportion as a simple fraction)
(D) What proportion will have the genotype SsXX? (Express the proportion as a simple fraction)
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S denoting for straight wings is a Dominant or wild type trait. And s denotes recessive trait for curly wings.
Female -XX
Male -XY
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