Question

The arrangement of homeotic genes along chromosomes of vertebrate and invertebrate animals corresponds to the expression pattern of the genes along the __________ axis of the developing embryo

Answer 1

The arrangement of homeotic genes along chromosomes of vertebrate and invertebrate animals corresponds to the expression pattern of the genes along the anterior-posterior axis of the developing embryo.

What are homeotic genes?

• Homeotic genes are a group of body pattern forming genes which control the development along the anterior- posterior axis of the developing embryo.
• These encode transcription factors which control and specify the genes involved in body patterning. These provide identity to the segments during embryo formation.
• Genes located in the 5’ end act on posterior side whereas the genes on 3’ end act on anterior region.
• Homeotic genes are evolutionary conserved and control body specification, patterning and differentiation.
• The loss of function of any of the gene changes the body pattern and affects the development.

Learn more about homeotic genes here:

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