Describe the differences and similarities in the gene families used by plants an

Question

Describe the differences and similarities in the gene families used by plants and animals to establish the body axis and to regulate gene expression of these gene sets.

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MADS-box proteinsThree classes of homeotic genes (A, B, and C)Homeodomain-containing proteinsUsing regulatory genes encoding transcription factorsFormation of organs is determined by regulatory genes expressed in overlapping domainsMutations causing organ formation in wrong placeGap and Pair-Rule genesRegulation of homeotic genes by chromatin structure

Specific for plants

Specific for animals

Common for plants and animals

Explanation / Answer

Homeotic genes regulating the development pattern of anatomical structures by programming of various transcription factors.  Hox and ParaHox genes are subsets of homeotic genes responsible for body pattern. Hox box contains homeobox genes, considered to be conserved among all organism. Homeotic genes comprises of MADS-box-containing genes indulged in flower development in ABC model. It is interesting ti note that MADS-box motif are also present in insects and mammals.

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