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MCB-Viruses

PBSC-MCB- Viruses

QuestionAnswer
The ____ cycle of viral infection produces new viral particles. Lytic
The subunit of a capsid is known as a _____. Capsomere
Glycoprotein spikes are also known as _____. Anti-receptors
The T4 bacteriophage has anti-receptors on the end of its _____. tails
A _____ is the viral DNA incorporated into an animal cell's genome. Provirus
On an animal cell, receptors are located on the _____ plasma membrane
______ is the term for the transfer of DNA between host cells by a viral particle. Transduction
The capsid remains _____ the bacterial cell when a T4 phage infects a bacterial cell. outside
Name the 2 RNA oncogenic viruses associated with leukemia. HTLV-1 and HTLV-2
The attachments for the virus on the outside of a host cell are known as _____. Receptors
Reverse transcriptase is an _____. enzyme
Gene _____ causes the cell to produce large amounts of the gene products because the gene is repeated many times. amplification
Infectious agents composed only of protein are called _____. Prions
Naked animal cell viruses enter the cell by _____. Endocytosis
Name all 4 types of latent viral infections mentioned in your notes. HHV-1, HHV-2, HHV-3, HIV
On the bacterial cell, where are the receptors located? cell wall
What 2 diseases are considered slow viral infections? HIV and Measles
Corynebacterium diptheriae has its _____ gene carried on a prophage. toxin
_____ viruses can act as mRNA and make protein immediately. +ssRNA
What does PFU stand for? Plaque Forming Unit
The term for viral DNA integrated into a bacterial genome is ________. Prophage
Enveloped animal cell viruses enter the cell by _____. Fusion
_____ is an oncogenic virus associated with liver cancer. HBV
The term for the clear areas on a plate where the virus has destroyed the bacteria are known as _____. Plaques
_____ is an oncogenic virus responsible for Nasopharyngeal carcinoma and Burkiett's Lymphoma. HHV-4
"Naked" viruses do not have an ______. Envelope
Reverse transcriptase catalyzes the formation of _____ from _____ which is the exact opposite of the normal process of information flow. DNA ; RNA
_____ is the term for the movement of oncogenes from one locus to another on the chromosome. Translocation
The virion obtains an envelope from the _____ _____. host cell
The term for a capsid structure that has a shape like a geodesic dome where the capsomeres form an equilateral triangle. Icosahedral
_____ are 2 oncogenic viruses associated with cervical cancer. Papillomavirus and HHV-2
What is the term used to describe the protein coat of a virus particle? Capsid
The anti-receptors are found on the _____. Virus
Uncoating of an animal cell virus involves separation of the capsid from the viral ____ ____ upon penetration into the cell. nucleic acid
Name 2 types of virus that carry a reverse transcriptase. HIV-1 and HIV-2
The _____ cycle of viral infection occurs when the viral DNA is inserted into the bacterial chromosome. Lysogenic
What are the names of the 2 glycoprotein spikes on the Influenza virus? Neurominidase and Hemaglutinnin
The term for a capsid morphology that is a hollow cylinder. Helical