A "vector" in recombinant DNA technology serves to

Question

Accepted Answer

A. {'text': 'Carry alien DNA into the host cell', 'label': 'A'}

1. A vector in cloning transports an alien DNA fragment into a host organism.
2. NCERT draws an analogy with a mosquito acting as a biological vector.
3. Plasmids and bacteriophages are common cloning vectors.
4. A good vector has an ori, selectable marker and unique cloning sites for the insert.
_Source: NCERT Class 12 Biology, Ch 9 "Biotechnology: Principles and Processes", §9.1_

Answer

{'text': 'Add methyl groups to DNA', 'label': 'B'}

Answer

{'text': 'Prevent replication of DNA', 'label': 'C'}

Answer

{'text': 'Excise all restriction sites', 'label': 'D'}