Question

In which of the following processes, bacterial attack by a virus is followed by the
multiplication of genetic material but not its lysis
A. Lysogeny
B. Adsorption
C. Assimilation
D. Viral Stability

Answer 1

Hint: The Human body consists of lots of bacteria in the gut. These bacteria present in humans can be attacked by bacterial viruses called bacteriophages. The virus can replicate its own DNA with the help of a host cell.

Complete answer:
Option A- The lysogenic cycle is that Process by which a virus can
replicate its DNA with the help of a host cell. In the lysogenic cycle, the DNA is only replicated and
not translated into proteins. In this lysogenic cycle the phage DNA gets integrated into host
genome and thee DNA is then replicated when the bacteria cell division occur this is possible
because all DNA is made of the same base molecules and so viral DNA is no exception in this,
Thus viral DNA replicates in the same way as bacterial DNA does. In this way there is multiplication
occur and not the lysis.
Option- B: Adsorption- Adhesion is an adhesion of atoms, ions or some molecules to a surface
and this creates a film of adsorbate on adsorbent surfaces.
Option- C: Assimilation-Assimilation is the process in which absorption of vitamins, minerals,
and other chemicals occurs from food within the gastrointestinal tract and in humans this is
possible by chemical or physical breakdown.
Option- D: Viral stability- Viral stability depends on the capsid of the virus or coat proteins we
can say. After some studies it was concluded that some capsid collapsed rapidly and other don't.
So the conclusion was that interlock between coat proteins is main Factor that determine
stability of a virus.

So the correct answer is Option A- Lysogeny.

Note: During attachment and penetration, the virus attaches itself to a host body or cell and
injects its genetic material into the host cell. During uncoating, replication, and assembly, the
viral DNA or RNA incorporates itself into the host cell’;s genetic material and that further induces
to replicate the viral genome along with it.