Question

E.coli and $T_2$ bacteriophage have ______(i)___________ and _____________(ii)____ type of genetic material respectively.

• A. circular ds DNA, circular ss DNA
• B. circular ds DNA, linear ds DNA
• C. circular ss DNA, linear ds DNA
• D. linear ss DNA, circular ds DNA

Answer 1

The correct option is B circular ds DNA, linear ds DNA

$T_2$ bacteriophage is a virus that infects bacteria. It has linear dsDNA (double-stranded DNA) as its genetic material.

E.coli, a bacteria (prokaryote), has circular dsDNA as its genetic material.