Question

______ is the key feature of the genetic mechanism that allows production of the huge diversity of antibody molecules.

Options

• somatic recombination

• operation of differentiation factors

• presence in the genome of a huge array of structural genes, each coding for a different antibody protein

• the operation of single-point mutations

Answer 1

Somatic recombination is the key feature of the genetic mechanism that allows production of the huge diversity of antibody molecules.

Explanation:

Somatic recombination is the key genetic mechanism that enables the production of a huge diversity of antibody molecules. It involves the rearrangement of gene segments encoding the variable regions of immunoglobulins in B-cells, allowing each B-cell to produce a unique antibody specificity. This process generates antibody diversity far beyond the number of antibody genes present in the genome.