NEET BIOLOGY

BIOLOGICAL CLASSIFICATION

VIRUSES

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following supports the argument that viruses are nonliving?
A
Their DNA does not encode proteins
B
They have RNA rather than DNA
C
They are not cellular
D
They do not evolve
Explanation: 

Detailed explanation-1: -Viruses do not have cells. They have a protein coat that protects their genetic material (either DNA or RNA). But they do not have a cell membrane or other organelles (for example, ribosomes or mitochondria) that cells have. Living things reproduce.

Detailed explanation-2: -Viruses also lack the properties of living things: They have no energy metabolism, they do not grow, they produce no waste products, and they do not respond to stimuli. They also don’t reproduce independently but must replicate by invading living cells.

Detailed explanation-3: -Which of the following supports the argument that viruses are nonliving? They are not cellular.

Detailed explanation-4: -Viruses are non-cellular organisms, but replicate themselves once they infect the host cell.

Detailed explanation-5: -Finally, a virus isn’t considered living because it doesn’t need to consume energy to survive, nor is it able to regulate its own temperature.

There is 1 question to complete.