Question

multiple choice question
although kochs postulates present a logical framework for establishing a particular microbe as the cause of a disease, they cannot always be applied today.
instead, microbiologists sometimes use ______.

procedures to isolate and manipulate viruses
computer simulations of disease models
molecular and genetic evidence
organoids produced from human stem cells

Explanation:

Koch's postulates fail for non-culturable microbes or those with complex disease links. Molecular/genetic evidence (e.g., detecting pathogen-specific DNA/RNA in infected hosts, identifying virulence genes) is the standard modern alternative to establish microbial causation when postulates can't be applied. The other options are either too narrow (virus isolation, organoids) or not the primary replacement (disease simulations).

Answer:

C. molecular and genetic evidence