B.I.
center Genotype and Phenotype

Translation
- parts of the system -
right

parts of the system
The 'tools' needed for translation are ...
... a single strand of RNA copied from DNA molecule. This is the messenger RNA (mRNA) molecule that carries the codes.

Ribosomes, which are the sites of assembly of the polypeptide.

Amino acids, all 20 - 22 of which must be present at the same time.

Small highly specific RNA molecules called transfer (tRNA) to which amino acids are covalently bound and which play a part in the decoding of the genetic code.

ATP is required as a source of energy for this highly non spontaneous process.

Various proteins and enzymes; for example the set of enzymes which specifically join the amino acids to the tRNA molecules.


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Science at a Distance
© 1997, 1998, 1999, 2000 Professor John Blamire