Viruses
The temperate phage that have no site specificity for insertion and may even be able to insert multiple copies of their DNA into a single bacterial chromosome is

λ DNA
Phage Mu
λ phage enzyme
Phage Mn

ANSWER DOWNLOAD EXAMIANS APP

Viruses
Which of the following statements is not true of viruses?

Viruses have been successfully grown in pure cultures in test tubes
All viruses are obligatory intracellular parasites
All viruses have either DNA or RNA as their genetic material
Viruses probably arose from small fragments of cellular chromosomes

ANSWER DOWNLOAD EXAMIANS APP