Question

how many nucleotides are needed to specify three amino acids?

Answer 1

Welcome to OpenStudy. Try this http://en.wikipedia.org/wiki/Genetic_code

Answer 2

You have to learn the whole process of protein synthesis in details; however to brief it up during the transcription process (which is the time when a segment of the DNA is exposed and act as a template for a RNA molecule called the mRNA to have complementary bases of) then the mRNA goes up to one of the subunits of the ribosomes; then the tRNA comes in with 3 anticodons for 1 amino acid (hence three bases) which is another further complementary of the mRNA molecule; another tRNA comes and does the same forming the peptide bond between the amino acids

Answer 3

This picture might give you better view of what's going on:
http://hyperphysics.phy-astr.gsu.edu/hbase/organic/imgorg/translation2.gif

Answer 4

9

Answer 5

Oops my bad I was confusing it with the number of tRNA; 1 base is for 1 nucleotide so three anticodons (hence 3 bases ) is 3 nucleotide for 1 amino acids, 9 is wrong.She probably said it because of the picture, a long Primary structured protein molecule can be as long as it wants (hence many amino acids) the number can be quite a huge one for one long change protein molecule

Answer 6

No, it takes 3 nucleotides to make an amino acid, so it would take 9 to make 3.

Answer 7

the chain will not just stop at just 3 amino acids it will continue to be longer; so that nucleotide number can be as huge as it can be when speaking for several animos.

Answer 8

^ THIS is the whole point of me posting the link. The explanation is in the 2nd paragraph.