Aframeshift mutation that occurs very early in a protein sequence would have what effect on the protein's structure? see section 16.4 (page 344) .

The answer is Primary, secondary, and tertiary structures would be altered. This is due to the fact that an early frameshift mutation will change most amino acid of the polypeptide chain due to a change in the reading frame. This will cause different interaction between the amino acids in the primary protein from those of the normal protein. The formed secondary and tertiary structures will, therefore, also be altered.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds