NOCTI Biotechnology Practice Test

What term describes the rearrangement of DNA sequences by exchanging segments from different DNA molecules?

DNA Recombination DNA Translation DNA Replication Mutation

Correct Answer:

DNA Recombination

Explanation:

Recombination is the rearrangement of DNA sequences by exchanging segments between different DNA molecules. This shuffling creates new combinations of genetic material and underlies processes like crossing-over during meiosis and various genetic engineering techniques where pieces from different DNA sources are joined. DNA translation is the process of decoding mRNA into a protein, not rearranging DNA. DNA replication is the copying of the genome prior to cell division. Mutation refers to a change in the DNA sequence itself, not the exchange of segments between molecules. Because recombination specifically describes exchanging DNA segments between molecules, it best fits the scenario.

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