Transfer RNA, or tRNA.
mRNA
tRNA
specific t-RNA carries its specific amino acids to ribosomes which is attached to m-RNA.m-RAN have codons to which t-RNA with complimentary anticodon attaches and primary structure of polypeptides synthesized.
Ribosomes with help from tRNA.
From a Gene in Chromosomes, a single stranded copy of messenger RNA goes to Ribosomes, the protein manufacturing sub units and get attached to it. There is sequence of codons in messenger RNA, giving order to ribosomes to put the denoted amine acid one by one as per the sequence of codons.(There is specific codons for each of the 20 amine acids.) There are multiple sites, at witch specific amine acids are attached at a time.These amine acids are brought at the site by Transfer RNA. So we have a specific protein with a given sequence as per gene is produced.If a single amine acid is short, then the entire chain is broken down and amine acids are used as a source of energy, giving rise to 4 kilocalary/ gram.(Same as Glucose.)
Amino Acids? I'm not positive but I'm working on the packet and have the same question.
Messenger RNA, or mRNA contains the codons. tRNA (transfer RNA) contains the anti-codons which bond to the codons of the mRNA. Amino acids are attached to the tRNA and form polypeptides based on the codons on the mRNA.
mRNA
There are three codons that do not code for any amino acids: the stop codons. These are TAG, TAA, and TGA (in DNA, not RNA).
codons
Codons are three bases on mRNA which go to the ribosome which translates into amino acids. The amino acids are attached to tRNA which has the anticodon on it which will bind to the codon on the mRNA. This is how the ribosome picks out the correct amino acid. the tRNA with the anti codon just binds to the codon and the amino acids start binding together via peptide bonds.
61 codons specify the amino acids used in proteins and 3 codons (stop codons) signal termination of growth of the polypeptide chain...so 64 total
The triplet code means that 64 codons translate into only 20 amino acids. The additional 44 codons are not used for anything, but they are rather a redundancy in the code.
Nucleutoides.
tRNA
anticodon
The linear sequence of codons on mRNA determines the linear sequence of amino acids in a polypeptide.