the RNA guide strand recruits RISC to a target RNA. It has been argued that the length of 22 nucleotides is just long enough to specify a single target sequence uniquely in the large genomes of complex eukaryotes using RNA–RNA base pairing.

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#Id: 1405

#Unit 4. Cell Communication and Cell Signaling

Myosin VI move toward the (−) end of an actin filament. 

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#Id: 4759

#Unit 5. Developmental Biology

PAL-1 activity is needed for the normal development of the somatic (but not the germline) descendants of the P2 blastomere, specifies muscle production.

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#Id: 6072

#Unit 10. Ecological Principles

Forest types in India

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#Id: 10499

#Unit 4. Cell Communication and Cell Signaling

Anoikis 

Excess cells may also be extruded from epithelial layers, by a mechanically regulated process that can cause detachment and the loss of trophic survival signals

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#Id: 6462

#Unit 3. Fundamental Processes

A typical gene transcribed by RNA polymerase II has a promoter that extends upstream from the site where transcription is initiated.