Viruses — Flashcards

Flashcard 631: Are Togaviruses enveloped?_____

Answer: Yes

Flashcard 632: After motor endplate infection, Rabies virus crosses the synaptic cleft by binding _____, entering neurons

Answer: neural cell adhesion molecules (NCAMs)

Flashcard 633: Rhinovirus grows best at _____ (temperature)

Answer: 33C

Flashcard 634: Polyomaviruses (JC, BK) are hypothesized to seed the _____ resulting in a clinically latent infection

Answer: kidney

Flashcard 635: Which serological antigen from EBV is seen in latent infection?_____

Answer: Epstein-Barr Nuclear Antigen (EBNA)

Flashcard 636: Rhinovirus is acid-_____

Answer: labile

Flashcard 637: Coxsackievirus is part of the _____ family

Answer: picornavirus

Flashcard 638: Most of the Bunyaviruses are also _____

Answer: arboviruses

Flashcard 639: _____ sense RNA are oriented in the 3' to 5' direction

Answer: Negative

Flashcard 640: 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.