A. Polynucleotide
B. Polypeptide
C. Oxyacetylene
D. None of these
Submitted by: Mirza Musawer Jamil
A polypeptide is a single linear chain of many amino acids (any length), held together by amide bonds. A protein consists of one or more polypeptides (more than about 50 amino acids long). An oligopeptide consists of only a few amino acids (between two and twenty).