Expression of a homeotic gene in an incorrect tissue in Drosophila results in the development of an inappropriate body part from that tissue. Why does this happen?
The homeotic gene is any group of genes that control the pattern of body formation during early development of embryonic organisms, and these genes encodes proteins (transcription factors) that direct the cells to form various parts of the body.
Homeotic genes controls the identity of body parts, but these genes in an incorrect tissue in Drosophila results in the development of an inappropriate body part. When the homeotic genes are overactivated or inactivated in an incorrect tissue by mutations, body structures may develop in the wrong place.
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