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Geneticists have identified a number of mutations of the Drosophila gene, Dorsal. Most mutant alleles result in...

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Biology

Geneticists have identified a number of mutations of theDrosophila gene, Dorsal. Most mutant allelesresult in dorsalized embryos, i.e. all tissues are dorsal.But one mutant allele is dominant to wild-type and results inventralized embryos, i.e. all tissues are ventral. How canthese results can be explained? Choose from answers below.

1. Mutant Dorsal cannot bind Spätzle.
2. Mutant Dorsal cannot bind Cactus.
3. The Dorsal gene is constitutively expressed in themutant.
4. Mutant Dorsal cannot bind DNA.
Mutant Dorsal initiates signal transduction in the presence orabsence of Toll.

Answer & Explanation Solved by verified expert
3.7 Ratings (694 Votes)
Option B mutant dorsal can not bind to cactus In ventral part of drosophilla pipe protein synthesis occur which cause formation of ventral side This pipe protein synthesis is    See Answer
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