DNA, RNA, codons and amino acids?

Question

I'm unsure exactly how the genetic code works. I know that each of the 20 amino acids has between 1 and 6 codons coding for them. However, I don't know on which part the order is found.

For example, methionine is carried on the AUG codon. Is this sequence found on the three-nucleotide transfer RNA that is bound to the methionine residue, or is it a section on the messenger RNA that acts as the link between the DNA and the ribosome?

And what exactly is meant with 5'-3' sequencing, or however it is actually stated? How do you know which part is the 5'?

I'm not a biochemist, but I am curious as to how this works. I've been unable to find it anywhere so far. Thank you for taking the time.

evenstar7878 · Accepted Answer

The codons that code for the amino acids are found on the mRNA.  The 3 nucleotide sequence found on tRNA is called an anticodon.  

The 5 and 3 in 5'-3' refer to a different carbon on the sugar (deoxyribose)  The two strands of DNA are what is termed "antiparallel" to one another.  The backbone on the 5' side is oriented differently than the backbone on the 3' side.  When DNA polymerase adds nucleutides during replication, it does so in the 5'-3' direction (or the new strand that is being made is the 5' side of the new DNA molecule)

remond · Answer

Dna To Rna Code

? · Answer

Proteins, simply by fact amino acids are the subunits of proteins. Subunits for different Macromolecules: Carbohydrates: trouble-free Sugars Lipids: fat and Oils Nucleic Acids: Nucleotides

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DNA, RNA, codons and amino acids?

3 Answers