You are studying an oligopeptide composed of eight amino acids.The four amino acids nearest the C terminus are nonpolar.The two amino acids nearest the N terminus are charged.The middle two amino acids are polar.Which amino acid is likely to be labeled as number 2?
A)threonine
B)phenylalanine
C)glutamine
D)lysine

Question

Quizplus · Accepted Answer

Given the description, the two amino acids nearest the N terminus are charged. Lysine (D) is a charged amino acid, making it a likely candidate for position 2, near the N terminus.

You Are Studying an Oligopeptide Composed of Eight Amino Acids