2007-03-19 08:56:37 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Biology
t in tRNA means TRANSFER.
and it does exactly that!
it transfers amino acids to the rRNA so that they can react with other amino acids attached to rRNA so that the chain can enlongate.
2007-03-19 09:02:26 · answer #1 · answered by Vidya 6 · 0⤊ 0⤋
tRNA is the information adapter molecule. It is the direct interface between amino-acid sequence of a protein and the information in DNA. Therefore it decodes the information in DNA. There are > 20 different tRNA molecules.
It has a site for amino acid attachment and a three-base region called the anticodon that recognizes the corresponding three-base codon region on mRNA via complementary base pairing. Each type of tRNA molecule can be attached to only one type of amino acid, but because the genetic code is degenerate - that is, it contains multiple codons that specify the same amino acid - multiple types of tRNA molecules bearing different anticodons may carry the same amino acid
2007-03-19 09:03:35 · answer #2 · answered by MSK 4 · 0⤊ 0⤋
Transfer RNA is a small RNA chain of about 74-95 nucleotides that transfers a specific amino acid to a growing polypeptide chain at the ribosomal site of protein synthesis during translation. It has sites for amino-acid attachment and an anticodon region for codon recognition that binds to a specific sequence on the messenger RNA chain through hydrogen bonding. It is a type of non-coding RNA.
2007-03-19 09:57:07 · answer #3 · answered by ANITHA 3 · 0⤊ 0⤋
tRNA is what provides the amino acid. It binds to the mRNA and brings the amino acid in proximity to the evolving polypeptide allowing enzymes to covalently link the next amino acid in the chain.
2007-03-19 09:01:50 · answer #4 · answered by misoma5 7 · 0⤊ 0⤋