PROTEIN SYNTHESIS -Translation



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Date : _____________

PROTEIN SYNTHESIS –Translation Notes

 

F. After the mRNA strand has left the nucleus it becomes associated with a

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[pic]

- When the mRNA comes near these two ribosomal subunits, the large one catches the mRNA in between the smaller one.

 

G.  The ribosome reads the _______________________________________________,

Then small molecules in the _______________________________________________ bring amino acids to the ribosome. tRNA contains a set of 3 bases which are

complementary to the bases on the mRNA. __________________________________

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[pic]

H.  The ribosome slides down to the next codon. A complementary tRNA arrives and is joined to the mRNA codon. The A.A. from the first tRNA is joined to the A.A. on the new tRNA. The first tRNA is released and goes off to find another identical Amino Acid.

See Animation



The ribosome continues to read the mRNA and the polypeptide chain grows

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The finished polypeptide is then released.

See Animation:



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- Many ribosomes may be found together, all reading the same mRNA. __________

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[pic]

- ______________________________________________________________________

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