KROK 1 2019 – Question 54 · KROK (Medicine) · Biology
Human genetic apparatus consists of approximately 30 thousand of genes, while the number of antibody variants can be as high as millions. What mechanism leads to formation of new genes that ensure the synthesis of such a number of antibodies?
- A. DNA repair
- B. Genetic recombination
- C. Formation of Okazaki fragments
- D. Gene amplification
- E. DNA replication
Hint
Ask which DNA-level process can produce many new gene variants in developing B lymphocytes from a limited set of inherited gene segments.
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