briefly describe the function of transfer RNA?

Answer 1

Transfer RNA (or tRNA) carries amino acids to the ribosome which are then transferred to a growing polypeptide chain during protein synthesis (also called translation). I've put a good article in the reference section.

Answer 2

Transfer RNA brings amino acids to the place where the protein is being built.

The tRNA matches its anticodon to mRNA's codon to put the amino acid the tRNA is carrying onto the polypeptide chain that is forming.

This all happens on a ribosome.

Answer 3

tRNA (transfer RNA) is an enzyme involved in translation of mRNA (messenger RNA). tRNA occupies the anti-codon sequences to mRNA and has attached to it a specific amino acid. For instance:

tRNA: AUCGUA ------ attached amino acid
mRNA: UAGCAU

Each three letter nucleotide makes up a codon, which equals an amino acid. 20 amino acids make up a protein. So tRNA continues to transfer these amino acids (in the cytoplasm) to mRNA until the proper protein is produced.