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uniquebelo uniquebelo
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8 years ago
Homeotic genes are genes that regulate the development of anatomical structures in various
organisms such as insects, mammals, and plants. Explain what makes homeotic genes to be particularly
helpful in mapping a human genome. Using a birth and death of genes paradigm, explain how one copy
of an ancestral homeotic gene can give rise to multiple related genes in this organism’s evolutionary
successors. What kind of defects would you expect if an animal were lacking a homeotic gene
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8 years ago
What kind of defects would you expect if an animal were lacking a homeotic gene?

--They help specify the difference between an arm and a leg, as well as a pinky and a thumb. In the nervous system, their expression in segmented embryonic structures called rhombomeres directs the development of different brain regions.
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