Answer Happy

1- How many stereogenic centers (chiral carbons) are there in
the following peptide sequence: Phe.Ser.Lys
A)0
B)1
C)2
D)3
E)4
2-of the amino acids below, the one least likely to be found in
an alpha helix
a)Alanine
b)lysine
c)arginine
d)glycine
e)histidine