BI 234: DNA VIRUSES EXAM QUESTIONS AND ANSWERS WITH COMPLETE VERIFIED

BI 234: DNA VIRUSES EXAM QUESTIONS AND ANSWERS

WITH COMPLETE VERIFIED


Herpes simplex virus 1 and 2 (Human Herpesvirus 1 and 2)

DNA virus most prevalent of DNA viruses

Important structural features: enveloped, polyhedral capsids, linear dsDNA

virulence factors: often latent

diseases: slow spreading skin lesions aka. herpes simplex virus or HSV; HHV-1 (via

kids contact) an HHV-2 (sexual activity) infections- oral herpes (red lesions that blister),

genital herpes (lesions on external genitals), pain, itching, ocular herpes, whitlow (1 or 2

enter cut or break in skin or on finger), neonatal herpes (vaginal birth); Asymptomatic

carriers- shed HHV-2

common treatment:

modes of transmission: close bodily contact (enters thru cracks and cuts in mucous

membranes

Small Pox Virus (aka. variola) Largest human pathogenic viruses

dsDNA

DNA virus: virus moves via the blood to the skin (produces pox)

Important structural features:capsules and envelopes; dsDNA

virulence factors:

diseases: Small pox-Variola major: severe disease with 20% mortality; Variola minor:

milder disease (variola infects internal organs, causing fever, malaise, and delirium)