2007-03-10 05:41:51 · 5 answers · asked by Linda 1 in Science & Mathematics ➔ Biology
DNA is too large to leave the nucleus. If the program (code for specific proteins) it contains must leave the nucleus, an intermediate must be produced. This intermediate is called m-RNA. m-RNA is formed in the following way, RNA polymerase binds to, a region of the DNA called, the promoter. Here is found the start codon TAC which codes for the amino acid methionine. Once this has been established the m-RNA sequence is produced growing from the 5' - 3' region. This occurs at the rate of 60 nucleotides / sec. The terminator sequence will keep the process from going on indefinitely. The eukaryotic m-RNA must be modified before going to the ribosome, while the prokaryotic does not.
2007-03-10 08:03:19 · answer #1 · answered by ATP-Man 7 · 0⤊ 0⤋
The sequence of bases in the gene tells how to make a protein by telling which amino acids to join in order. The instructions are written in "code" or sets of 3 bases, each base calling for a particular amino acid to be added to a chain.
2007-03-10 05:45:05 · answer #2 · answered by ecolink 7 · 0⤊ 0⤋
Protein synthesis:
1. trascription
2. translation
It's the process of expressing a gene from DNA to mRNA through transcription. Then from mRNA post transcriptional processing to translation into a protein.
2007-03-10 05:44:52 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I think it means, that's the exact protein it's gonna build. DNA uses RNA to make proteins in the cells.
2007-03-10 05:44:59 · answer #4 · answered by Anonymous · 0⤊ 0⤋
what it means is DNA is borin
2007-03-10 05:44:31 · answer #5 · answered by Tommy 3 · 0⤊ 0⤋