Viruses — Flashcards

Flashcard 641: Does viral phenotypic mixing result in a change in the **genotype** of the progeny?

Answer: No

Extra: Phenotypic mixing involves the exchange of surface proteins (capsid or envelope) between two viruses. While the immediate progeny has a changed **phenotype**, the **genotype** remains unchanged. Thus, the next generation will revert to the original phenotype.

Flashcard 642: Laryngeal papillomatosis and condyloma acuminata are caused by what strains of HPV? _____

Answer: HPV 6, HPV 11

Flashcard 643: Which RNA virus can result in an aversion to smoking?_____

Answer: HAV

Flashcard 644: Hepatitis E virus is acid-_____

Answer: stable

Flashcard 645: Which virus is said to be 'bullet-shaped'?_____

Answer: Rabies virus (rhabdovirus)

Flashcard 646: Which viral virulence factor promotes the release of progeny virions?_____

Answer: Neuraminidase

Flashcard 647: Poliovirus is a common cause of _____ meningitis

Answer: aseptic (viral)

Flashcard 648: Risk of CIN depends on HPV type, which is determined by _____

Answer: DNA sequencing

Flashcard 649: Which polyomavirus can cause nephropathy?_____

Answer: BK virus

Flashcard 650: DNA viral genomes can either be circular or linear and are usually _____-stranded

Answer: double