NTA Abhyas NEET2020BotanyBiological ClassificationPractice
Which of the following statement is correct for virus?
Options
- AViruses contain either DNA or RNA
- BViruses possess their own cell membrane
- CViruses are facultative parasites
- DViruses are readily killed by antibiotics
Correct answer
A. Viruses contain either DNA or RNA
Step-by-step solution
Virus is an infectious agent having a genetic material (DNA or RNA) enclosed by an organic material that can replicate inside a host organism. Viruses are known to infect all forms of living organisms. These are obligate parasites. The genetic material is enclosed by a protein capsid and not a cell membrane. Since these lack metabolic pathways and cell wall is absent, antibiotics are ineffective against virus.