BIOLOGY 2EE3 Midterm: Bio 2EE3 Terminology Post-Midterm

190 views11 pages

magentamacaw163

13 Jun 2016

School

Department

Course

Professor

For unlimited access to Study Guides, a Grade+ subscription is required.

Document Summary

Biology 2ee3 terminology chapters 16, 11, 17, 18, 19, 20, 21, 22, 12, 16, 23, 25, 26, 27. Virion the infectious form of a virus as it exists outside the host cell, consisting of a nucleic acid core, a protein coat, and, in some species, an external envelope. Capsid the coiled or polyhedral structure, composed of proteins, that encloses the nucleic acid of a virus. Bacteriophage/phage any of a group of viruses that infect specific bacteria, usually causing their disintegration or dissolution. Plaque a cell-free zone on a lawn of bacteria cells caused by viral lysis. Host range the species that can be infected by a given pathogen. Cloning vector an independently replicating plasmid having regions into which foreign. Reading frame the position in a nucleic acid sequence from which triplet codons encode amino acids. Viroid an infectious agent of plants similar to a virus but consisting of only a short, single strand of rna without a protein coat (naked).

Related Questions

QUESTION 1: The rabies virus primarily affects the nervous system. The specificity that the rabies virus has for neuronal host cells is primarily dictated by __________________________.

A. the helical shape of its viral capsid

B. the type of nucleic acid used for its viral genome (single-stranded, antisense RNA)

C. the spikes that protrude from its viral envelope

D. the segmented nature of its viral genome

QUESTION 2: Which of the following genome types has been observed in viruses? To be marked correct, you'll need to select all true statements, as there may be more than one correct answer.

A. Single-stranded RNA

B. Single-stranded DNA

C. Double-stranded RNA

D. Protein-based

QUESTION 3: Choose the correct statement about viral evolution.

A. RNA and DNA viral genomes evolve at equal rates.

B. Cellular genomes mutate at a faster rate than viral genomes due to their large size and increased chance of replicative mistakes.

C. DNA viruses mutate faster than RNA viruses because thymine is more susceptible to mutation than uracil.

D. RNA viruses mutate faster than DNA viruses due to a lack of proofreading replicative enzymes.

QUESTION 4: Your elderly patient is affected by shingles. After careful observation, you note that the virus responsible for the infection has an icosahedral capsid, is enveloped, and has double-stranded linear DNA as its genetic material. Based on this information, in which of the following viral families would you group this viral pathogen?

QUESTION 5: Which of the following is a key difference between lytic and lysogenic bacteriophage replication cycles?

A. Lysogenic bacteriophages release via host cell lysis, whereas lytic bacteriophages bud off from the host cell membrane.

B. The lytic replication cycle ends with host cell lysis and release of newly formed bacteriophage particles, whereas lysogenic replication leads to prophage formation.

C. Lytic replication requires an uncoating step, whereas in lysogenic replication, the bacteriophage's nucleic acid is directly injected into the host cell.

D. Whereas lytic replication enables the infection of several hosts, lysogenic replication only allows for infection of a single host cell.

QUESTION 6: Which of the following is an unsuitable culture method for an animal virus?

A. Direct inoculation of virus onto blood agar

B. Live animal inoculation

C. Tissue culture method

D. Injection of virus into embryonated eggs

BIOLOGY 2EE3 Midterm: Bio 2EE3 Terminology Post-Midterm

Document Summary

Get access

Related Documents

BIOLOGY 2EE3 Lecture Notes - Lecture 5: Henrietta Lacks, Cas9, Tissue Culture

BIOLOGY 2EE3 Lecture Notes - Lecture 11: Cell Membrane, Viral Envelope, Veterinary Virology

BIOLOGY 2EE3 Lecture Notes - Lecture 5: Dmitri Ivanovsky, Tobacco Mosaic Virus, Aids

Related Questions