XY fruit flies that are mutant for Tra: A) have the physical appearance of females. B) express Dsx^F. C) make a long mature version of the Fru mRNA. D) make a full-length version of the Fru protein. E) All of the above

Question

Quizplus · Accepted Answer

XY animals normally do not express functional Tra, so the Tra mutants should have a wild-type male phenotype in which they express Dsx^M, perform male (default) splicing of Fru mRNA(excluding the female-specific exon segment with the stop codon), and make a full-length, functional Fru^M.

XY Fruit Flies That Are Mutant for Tra