Virulent

... committee for the Center for AIDS Research and directed the biosafety level 3 facility, a specialized laboratory for the handling of HIV, virulent TB bacteria, and other infectious agents. —Circumstance of Death: Killed in a traffic accident while visiting family in Tennessee September ...

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... on each replica plate. This indicates that : a) the contact with T1 phage induces change that produces resistance. b) T1 phage can mutate to a virulent form. c) the mutations must have occurred after contact with T1 phage d) the resistance to T1 phage pre-existed in the cultures. e) mutation ...

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... from lysed bacteria can enter into neigbouring bacteria (then followed by homologous recombination). There is a famous experiment showing this: avirulent Streptococcus pneumoniae became virulent by being exposed to heat-killed virulent cells. But I see your point; the question stresses ALWAYS, ...

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... point, the number of potential hosts needed to persist does increase with virulence, but not for the reason you said above. What are the least virulent "pathogens" in the human body? The symbiotic bacteria that are present in every person's gut (although they are not strictly pathogens ...

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... in lysogeny get inactivated? Prophage is a potent phage produced during lysogenic cycle of bacphages. Does potential of a prophage to be a virulent phage get inactivated?

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