Principle of Inheritance and VariationHard
Question
During organ differentiation in Drosophila, an organ is modified to another organ (such as wings may be replaced by legs ). Genes responsible for such metamorphosis are called
Options
A.double dominant genes
B.plastid genes
C.complementary genes
D.homeotic genes
Solution
Homeotic genes are control genes which either by getting expressed or remaining silent during development, influence the differentiation of organs. These have been found in insects, one nematode and some plants. A DNA sequence called homeobox, preent in these genes, is involved in specification of organs. A mutation that causes a body part to develop in appeopriate position in an organism, is called homeotic mutation eg, in Drosophila, such muta tion may cause legs to develop on the head in place of antennae.
Create a free account to view solution
View Solution FreeTopic: Principle of Inheritance and Variation·Practice all Principle of Inheritance and Variation questions