Biology
Grade-10
Easy
Question
Indirect effects of the vestigial gene in fruit flies include:
Alters the number of egg strings in a fly’s ovaries
Alters the position of bristles on a fly’s scutellum
Decrease the length of a fly’s life
All the above
Alters the number of egg strings in a fly’s ovaries
Alters the position of bristles on a fly’s scutellum
Decrease the length of a fly’s life
All the above
Hint:
All the above
The correct answer is: All the above
The vestigial gene of Drosophila melanogaster encodes a nuclear protein which plays a key role in wing formation but is also involved in other development processes.
Flies with vestigial wings cannot fly: they have a defect in their "vestigial gene," on the second chromosome. These flies have a recessive mutation. Of the pair of vestigial genes carried by each fly (one from each parent), both have to be altered to produce the abnormal wing shape.
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