Question

Which of the following process occurs in regions where no large –scale sequence similarity is apparent?

(a) Homologous genetic recombination

(b) Site specific recombination

(c) Non-homologous recombination

(d) Replicative recombination

I have been asked this question in an online quiz.

Origin of the question is DNA Recombination in chapter DNA, RNA and Protein Metabolism of Biochemistry

Answer 1

Correct answer is (c) Non-homologous recombination

Explanation: Site-specific recombination occurs between particular short sequences present on otherwise dissimilar parental molecules.

Replicative recombination generates a new copy of the transposable element at a new location of DNA.

Homologous genetic recombination occurs between DNA molecules of very similar sequences.