During organ differentiation in Drosophila, an organ is modified to another organ (such as wings may be replaced by legs).

Question

During organ differentiation in Drosophila, an organ is modified to another organ (such as wings may be replaced by legs).

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

(a) double dominant genes

(b) plastid genes

(c) complementary genes

(d) homeotic genes

Monjur Alahi

4 views

2025-01-04 04:42

1 Answers

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Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

Correct option (d) homeotic genes

Explanation

Homeotic genes are control genes which either by getting expressed or by 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, present in these genes, is involved in specification of organs.

A mutation that causes a body part to develop in appropriate position in an organism, is called homeotic mutation, e.g. in Drosophila, such mutation may cause legs to develop on the head in place of antennae.