Question $14$

$1$ pts

Which statement about antibodies is true?

An antigen$-$binding site on an IgG is formed by the amino$-$terminal $110$ amino acids of a light chain and the amino terminal $110$ amino acids of a heavy chain

An antigen$-$binding site on an $lgG$ is formed by the variable region of a light chain and the variable region of a heavy chain

Antigen$-$binding specificity is determined by the sequences of the hypervariable sequences in both the light chain and the heavy chain

As a result of the large sequence variation in the antigen$-$binding site, it is thought that the immune system can produce ${10}^{18}$ different antibodies! to different antigens

All of the above statements are true