Which of the following characteristics of living organisms absolutely disqualifies viruses as alive? A. Reproduction B. Ability to move C. Utilizing energy D. Evolutionary adaptation E. Cellular organization Solution A. Reproduction is characteristic that disqualifies viruses as alive; as for this they are dependent on other living cells. They can reproduce on their own. for ex. a bacteriophage infects a bacterial cell by injecting its DNA to bacterial cell. when that piece of viral DNA gets replicated with bacterial DNA, the bacterial cell expresses all viral genes which are necessary to make new viral cells, on getting them mature the bacterial cell brusts to release those viral cells. thus a life of viruse is dependent on a other living cell for reproduction..

1. Which of the following characteristics of living organisms absolutely disqualifies viruses as
alive?
A. Reproduction
B. Ability to move
C. Utilizing energy
D. Evolutionary adaptation
E. Cellular organization
Solution
A. Reproduction is characteristic that disqualifies viruses as alive; as for this they are dependent
on other living cells. They can reproduce on their own. for ex. a bacteriophage infects a bacterial
cell by injecting its DNA to bacterial cell. when that piece of viral DNA gets replicated with
bacterial DNA, the bacterial cell expresses all viral genes which are necessary to make new viral
cells, on getting them mature the bacterial cell brusts to release those viral cells. thus a life of
viruse is dependent on a other living cell for reproduction.