NEET BIOLOGY

Detailed explanation-1: -homeotic gene, any of a group of genes that control the pattern of body formation during early embryonic development of organisms. These genes encode proteins called transcription factors that direct cells to form various parts of the body.

Detailed explanation-2: -Homeotic genes are responsible for determining the identity of particular segments or structures of the body.

Detailed explanation-3: -Homeotic genes occupy a central position in the hierarchy of genes controlling the early steps of embryonic development in Drosophila. They are involved in the specification of the individual identity of each segment of the insect’s body.

Detailed explanation-4: -Hox genes direct the identity of vertebrae Vertebrae, with all their associated muscles and bones, grow from repeating units in the embryo called somites. Hox genes (often in combination) help define somite identity, directing them to develop differently depending on where they are in the body.

Detailed explanation-5: -A class of transcriptional control genes called Hox genes directs the organization of the major animal body plans, and these genes are strongly homologous across the animal kingdom.