The charging of a tRNA with its cognate amino acid is a remarkably accurate process.

Experimental measurements indicate, for example, that at equal concentrations of isoleucine and valine, IleRS transfers ∼40,000 isoleucines to tRNAIle for every valine it so transfers.

TLS Online TPP Program

#Id: 2265

#Unit 11. Evolution and Behavior

TLS Online TPP Program

#Id: 3538

#Unit 2. Cellular Organization

The chloroplast genome in land plants encodes 4 rRNAs, 30 tRNAs, and 60 proteins.

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#Id: 9558

#Unit 11. Evolution and Behavior

Orthogenesis - “Straight-line evolution,” held that the variation that arises is directed toward fixed goals.

So that a species evolves in a predetermined direction by some kind of internal drive, without the aid of natural selection.

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#Id: 9637

#Unit 4. Cell Communication and Cell Signaling

GRB2 is an adapter protein, serves as a link, or scaffold, between the activated receptor and Sos

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#Id: 1254

#Unit 7. System Physiology – Animal

The major action of ADH on principal cells in the late distal tubule and collecting duct