Mixtures of exons duplicated from genes with different functions can generate new genes with new functions, a process that is called exon shuffling.

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#Id: 10483

#Unit 4. Cell Communication and Cell Signaling

MDM2

catalyzes the ubiquitinylation of p53 & targeting it for proteasomal degradation

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#Id: 9652

#Unit 4. Cell Communication and Cell Signaling

TLS Online TPP Program

#Id: 6040

#Unit 10. Ecological Principles

Species diversity - Number of species

Western Ghats have greater amphibian species diversity than the Eastern Ghats. 

The overall richness of species is concentrated in equatorial regions and tends to decrease as one moves from equatorial to polar regions.India has 390 different mammals (rated eight highest in the world); 1,232 species of birds (eighth in the world); 456 species of reptiles (fifth in the world) and 45,000 plant species, of which most are angiosperms, (fifteenth in the world)

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#Id: 5756

#Unit 10. Ecological Principles

Clement’s organismic model- Competition causes sharp boundaries between groups of species; certain species group together.

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#Id: 948

#Unit 5. Developmental Biology

Active guanylyl cyclase causes the sperm cell to produce more cGMP, that activates a calcium channel in the cell membrane of the sperm tail.