ve isolated a loss-of-function temperature… Show more You

ve isolated a loss-of-function temperature… Show more You are interested in wing development in Drosophila. You’ve isolated a loss-of-function temperature-sensitive allele you name ubxts. It is an allele of the Ubx hox gene, which normally promotes hindwing development and represses forewing formation. Which of the following will result in adult flies with an additional pair of forewings where the hindwings normally are: a) homozygous ubxts /ubxts fly embryos grown at the restrictive temperature during development b)homozygous ubxts/ubxts fly embryos grown at the permissive temperature during development c) homozygous ubxts/ubxts flies that were grown at the permissive temperature during development and then shifted to the restrictive temperature in adulthood d) none of the above, a homozygous ubxts/ubxts will die early in development • Show less

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