Question

Restricted transduction occurs when:

• A. genetic transfer between an Hfr cell and F cell is disrupted, and only part of the donor chromosome moves into the recipient
• B. a propage includes some bacterial genes when it excises from the bacterial chromosome
• C. reverse transcriptase creates a DNA copy from an RNA template
• D. restriction enzymes cut up viral DNA

Answer 1

The correct option is B a propage includes some bacterial genes when it excises from the bacterial chromosome

Transduction is the process of transfer of a foreign gene from one cell to another with the help of a virus. It can be either generalised or restricted. In generalised transduction involves the transfer of a bacterial gene from one bacterium to the second one with the help of bacteriophage. Restricted transduction involves condition in which bacteriophage transduce only some specific bacterial genes excised from the bacterial chromosome.

So, the correct option is 'a propage includes some bacterial genes when it excises from the bacterial chromosome'.