Question

which of the followin amino acid has only one carboxylic group and only one amino group
a)lyine
b)valine
c)arginine
d)all

Answer 1

Which do you think it is?

Answer 2

i marked all as all amino acid contain C terminal and N terminal iteslf say dat all amino acid are having 1 carboxylic group and 1 amino group

Answer 3

Yes, that's right.

Answer 4

no ans is valine :(

Answer 5

i dont know how :(

Answer 6

Lysin has 2 N-terminis and Arg has 3 N-terminis with a one c-termini for both but Valine has only one from each termini

Answer 7

it means we have to learn str. too :(