Question

Match Column $-I$ with Column $-II$ and choose the correct option:

$\Phi\times 174$ coliphage

• A. $\left(\right.a\left.\right)-\left(\right.iii\left.\right);\left(\right.b\left.\right)-\left(\right.i\left.\right);\left(\right.c\left.\right)-\left(\right.iv\left.\right);\left(\right.d\left.\right)-\left(\right.ii\left.\right)$
• B. $\left(\right.a\left.\right)-\left(\right.iv\left.\right);\left(\right.b\left.\right)-\left(\right.i\left.\right);\left(\right.c\left.\right)-\left(\right.iii\left.\right);\left(\right.d\left.\right)-\left(\right.ii\left.\right)$
• C. $\left(\right.a\left.\right)-\left(\right.iv\left.\right);\left(\right.b\left.\right)-\left(\right.iii\left.\right);\left(\right.c\left.\right)-\left(\right.ii\left.\right);\left(\right.d\left.\right)-\left(\right.i\left.\right)$
• D. $\left(\right.a\left.\right)-\left(\right.iii\left.\right);\left(\right.b\left.\right)-\left(\right.iv\left.\right);\left(\right.c\left.\right)-\left(\right.i\left.\right);\left(\right.d\left.\right)-\left(\right.ii\left.\right)$

Answer 1

Answer: (C)

Reoviridae is a family of double-stranded RNA viruses.
Escherichia virus Qβ has positive-strand RNA as the genome and it infects bacteria that have F-pili.
Enterobacteria phage T2 is a virus that infects and kills E. coli, and its genome consists of linear double-stranded DNA.
The phi X 174 bacteriophage has single-stranded DNA as the genome and it infects Escherichia coli.