UNH BMS 503 Exam 3 Questions with Complete Solutions

Enveloped viral membranes are generally ______________ with associated virus-specific ______________ Correct Answer-Lipid bilayers; proteins Reverse transcriptase is an: Correct Answer-RNA-dependent DNA polymerase Which of the following is true regarding viral attachment proteins (VAP)? Correct Answer-They interact with host cell receptors, can be composed of proteins, carbs or lipids and they define the host range of the virus Restriction is: Correct Answer-A general host mechanism to prevent the invasion of foreign nucleic acid A virus that kills its host is said to be Correct Answer-Lytic The replication cycle of lambda phage is controlled by accumulation of repressor proteins. For lysogeny to occur: Correct Answer-cI protein dominates Viral proteins are categorized as early, middle and late. Early proteins typically are necessary for: Correct Answer-Production of viral mRNA and copying the viral genome