Compare and contrast the specification of segmental iden...

Question

Compare and contrast the specification of segmental identity in Drosophila with that of floral organ specification in Arabidopsis. What is the same in this process, and what is different?

Accepted Answer

Hey, everyone. Let's take a look at this question together. In Arabidopsis, the floral organ is determined by the expression of which type of genes is it? Answer choice. A the Hawks genes. Answer choice B Matt's box gene, answer choice C morpho genes or answer choice D bio genes. Let's work this problem out together to try to figure out which of the following genes determines the floral organ identity. So we know that in Arabidopsis, the floral organ is composed of four worlds which are activated, bye different genes. And these four worlds include the sepals, the pedals, the stamens. And lastly, you have the carpals. And so these are the four worlds of the floral organ in Arabidopsis. And so the genes that are responsible for the identity of the sepals and the petals are activated first. The genes responsible for the identity of the stamens are activated. Second. And lastly, the genes responsible for the identity of the carpals are activated third. And so the expression of the genes that determine the floral organ identity are the mads box beans, which means that answer choice B is the correct answer. Since we know that in Arabidopsis the floral organ which is composed of those four worlds are activated by the Mads box genes in a specific order to determine the identity, starting with the sepals and the petals first followed by the stamens and then lastly the carpals. So answer choice B mads box gene is the correct answer. I hope you found this video to be helpful. Thank you and goodbye.

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Compare and contrast the specification of segmental identity in Drosophila with that of floral organ specification in Arabidopsis. What is the same in this process, and what is different?