Q17 cellular receptors are commonly used for:
A. none
B all
C immune cell activation
D adhesion
E cellular interactions
Q18. The role of viral fusion peptides is to:
A mediate the recognition of viral nucleic acids and host cell polymerases during the replication phase of the viral replication cycle.
B mediate the recognition of viral attachment proteins and host cell receptor proteins during the recognition phase of the viral replication cycle.
C mediate the fusion of viral membranes and host cell membranes during the entry phase of the viral replication cycle.
D mediate the fusion of replicated and assembled viral particles and host cell membrane during the egress phase of the viral replication cycle
Q22 Most enveloped viruses exit the cell by the following process
A cell lysis
B exocytosis
C budding
D Golgi transport.
E cytokinesis.
Q17 cellular receptors are commonly used for:
A. none
B all
C immune cell activation
D adhesion
E cellular interactions
Q18. The role of viral fusion peptides is to:
A mediate the recognition of viral nucleic acids and host cell polymerases during the replication phase of the viral replication cycle.
B mediate the recognition of viral attachment proteins and host cell receptor proteins during the recognition phase of the viral replication cycle.
C mediate the fusion of viral membranes and host cell membranes during the entry phase of the viral replication cycle.
D mediate the fusion of replicated and assembled viral particles and host cell membrane during the egress phase of the viral replication cycle
Q22 Most enveloped viruses exit the cell by the following process
A cell lysis
B exocytosis
C budding
D Golgi transport.
E cytokinesis.
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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?
|
alkalosis homeostasis cryogenesis |
carbohydrates lipids nucleic acids |
water is adhesive water istransparent water expands when itfreezes |
reaction initiation activation |
cytoplasm mitochondria nucleus |
oxygen and sugars proteins and sugars carbon dioxide andoxygen |
pigments, products products, reactants elements, atoms |
ATP starch glycogen |
fats steroids amino acids |
Kreb's cycle acetyl-CoAformation electron transportchain |
fermentation the Kreb cycle the electron transportchain |
Cool the reactants. Decrease the pH. Add an enzyme(catalyst). |
nucleus mitochondria a cell membrane |
cell walls chromosomes mitochondria |
osmosis active transport passive transport |
ribosome mitochondrion cytoskeleton |
diffusion active transport passive transport |
lipids proteins carbohydrates |
neither take up water orlose water take up water andswell transport water into thecell by active transport. |
lipid storage DNA replication photosynthesis |
chromosome movementduring mitosis protein synthesis ATP production |
metaphase anaphase telophase |
metaphase anaphase telophase |
metaphase anaphase telophase |
Synthesis phase (S) G1 cytokinesis |
4 daughter cells, 5chromosomes each 2 daughter cells, 10chromosomes each 2 daughter cells, 5chromosomes each |
10 20 Not enough informationprovided |
the number of chromosomesallotted to each daughter cell must be halved sister chromatids must beseparated into different daughter cells it produces new arrays ofalleles on chromosomes and contributes to genetic diversity |
are in Interphase are in metaphase are undergoingMeiosis |
twice as many chromosomesas the original cell an independent assortmentof the original cell's chromosomes an identical copy of theoriginal cell's chromosome. |
A-C-A-G-C-C-G-T-A T-G-T-C-G-G-C-A-T U-G-U-C-G-G-C-A-U |