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A Female Fruit Fly with Vermilion Eyes and Normal Wings

Question 51

Multiple Choice

A female fruit fly with vermilion eyes and normal wings is crossed with a male with normal red eyes and cut wings.The F1 progeny consist of females with red eyes and normal wings,and males with vermilion eyes and normal wings.When the F1 progeny are interbred,the F2 consists of two types of females-vermilion eyes,normal wings (1/2) and red eyes,normal wings (1/2) ,and two types of males-vermilion eyes,normal wings (1/2) and red eyes,cut wings (1/2) .Are the genes for eye colour and wing type X-linked or autosomal?


A) The eye-colour gene is X-linked and the wing-type gene is autosomal.
B) The eye-colour gene is autosomal and the wing-type gene is X-linked.
C) Both genes are X-linked.
D) Both genes are autosomal.
E) More than one of the choices is consistent with the data.

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