Question 2. Bicoid(bcd) is a maternal effect gene that functions in Drosophiladevelopment. (i) Describe the role of maternal effect genes. (ii) What will be the phenotype of a fruit fly that is homozygous for a mutated bicoidgene and why (bcd-)? (iii) Suppose that a male fruit fly that is homozygous for a mutated bicoidgene (bcd-) mated with a wild-type female. What would be the phenotype of the progeny and why? (iv) Suppose that a female fruit fly that is homozygous for a mutated bicoidgene (bcd-) mated with a wild-type male. What would be the phenotype of the progeny and why? (v) Suppose that a fruit fly larva was destined to develop two posterior ends. What could a researcher do to allow this larva to develop normally (wild-type phenotype)?
Question
2. ; ;Bicoid(bcd) is a maternal effect gene that functions
in ;Drosophiladevelopment. ;
(i) Describe the role of maternal effect genes. ;
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(ii) What will be the phenotype of a fruit fly that is homozygous for a mutated ;bicoidgene and why (bcd–)?
(iii) Suppose that a male fruit fly that is homozygous for a mutated ;bicoidgene (bcd–) mated with a wild-type female. ; ;What would be the phenotype of the progeny and why?
(iv) Suppose that a female fruit fly that is homozygous for a mutated ;bicoidgene (bcd–) mated with a wild-type male. ; ;What would be the phenotype of the progeny and why?
(v) Suppose that a fruit fly larva was destined to develop two posterior ends. ; ;What could a researcher do to allow this larva to develop normally (wild-type phenotype)? ;