A transcription factor, Prx1, is essential for forelimb growth in mammals. The forelimbs of mice are legs and the forelimbs of bats are wings
If the enhancer region of Prx1 in mice is replaced with the enhancer region of the bat Prx1, the resulting fore-limbs of the transformed mice are 6% longer than normal. Explain this result.
What will be an ideal response?
ANS:
By changing the enhancer region, the expression of the gene has been changed, resulting in a change in mor-phology.
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What will be an ideal response?
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