NEET 2003 Biology question

Viruses are no more "alive" than isolated chromosomes because :-

(1)They require both RNA and DNA
(2)They both need food molecules
(3)They both require oxygen for respiration
(4)Both require the environment of a cell to replicateCorrect

Answer: (4)

Solution

Both a virus and an isolated chromosome are nucleic-acid molecules that cannot copy themselves on their own. A virus is an obligate intracellular parasite - it replicates only by using the enzymes, ribosomes and raw materials of a host cell - and an isolated chromosome likewise

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-089236