RdRP has not yet been identified in mammalian cells, and high efficiency there likely results from the fact that slicing is catalytic— that is, each RISC can cleave several mRNAs.

TLS Online TPP Program

#Id: 1236

#Unit 7. System Physiology – Animal

Thyrotropin-releasing hormone (TRH) Tripeptide stimulates secretion of TSH by thyrotropes

TLS Online TPP Program

#Id: 3064

#Unit 10. Ecological Principles

 Tropical islands have greater c values than temperate ones.

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#Id: 8004

#Unit 10. Ecological Principles

Major component of ecological niche

1. Space Habitat

2. Eating habit

3. Environmental variant

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#Id: 8953

#Unit 11. Evolution and Behavior

A third way that gene duplicates arise is by retrotransposition.

Here the messenger RNA from a gene is reverse-transcribed to DNA, which is then integrated into the genome.

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#Id: 1509

#Unit 2. Cellular Organization

GTP-binding site on the β-subunit is at the surface of the dimer and GTP bound by the β-subunit can be hydrolyzed.