Hepatitis A is caused by (1) E. coli, (2) Norwalk-like virus, ...

[sarasara]

Hepatitis A is caused by
 
  (1) E. coli, (2) Norwalk-like virus, (3) Gonyaulax catanella, (4) rotavirus, (5) none of these.

Question 2

A peptide bond is formed by linking the carbon of one amino acid with the
 
  (1) carboxyl group on the next amino acid, (2) nitrogen atom on the original amino acid, (3) nitrogen on the next amino acid, (4) hydrogen on the next amino acid, (5) none of these.

[Natalie4ever]

Answer to Question 1

5

Answer to Question 2

3
368.The backbone chain of a protein is composed of (1) C-C-N-C-C-N-, (2) N-C-N-N-C-N-N-C-, (3) C-O-N-C-C-N-C-N-C-, (4) _C-N-C-N-C-N-, (5) none of these.
1

[sarasara]

TY

[Natalie4ever]

You're welcome