Back
to top
20 amino acids
Watch this threadPage 1 of 1
Go to first unread
Skip to page:
_Rusty_
Badges:
21
Rep:
?
You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#1
avery_
Badges:
8
Rep:
?
You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#2
Report
#2
(Original post by chris01928)
I know why there is 3 codons per AA, but why 20 AA?
I know why there is 3 codons per AA, but why 20 AA?
2 key answers are:
1. 20 amino acids is simply sufficient, using just 20 amino acids - all the organisms on earth have managed to adapt to almost every habitable environment.
2. the point at which tRNA (molecules involved in translation, which recognise codons) starts finding it difficult to distinguish different amino acids is 20.
both these points allude to the fact that 20 is simply sufficient for life.
hope this helps
0
reply
Jpw1097
Badges:
19
Rep:
?
You'll earn badges for being active around the site. Rep gems come when your posts are rated by other community members.
#3
Report
#3
(Original post by KA_P)
There is only so many combinations 3 codons can make and the number of combinations equal the number of different amino acids that can be made.
There is only so many combinations 3 codons can make and the number of combinations equal the number of different amino acids that can be made.
0
reply
X
Page 1 of 1
Go to first unread
Skip to page:
Quick Reply
