Homework Answers
In this case, we need a sensitive test but at the same time that requires just a small sample in order to determine the presence of virus. The nucleic acid amplification tests are a good options for this purpose. IN fact, one of the most used is the polymerase chain reaction (PCR) where a sample is obtained, the DNA is extracted and it is amplified in order to detect viral genome.
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39 Which of the following would be the most useful in detecting a newly emerging virus...
Q1)What factors are NOT involved in the conjugation process? * a-Donor cell with pilus. b-Both donor...
Q1)What factors are NOT involved in the conjugation process? * a-Donor cell with pilus. b-Both donor and recipient alive. c-Fertility plasmid in donor. d-Free donor DNA (fragment) Q2)Bacteriophage is a virus that replicates inside a bacteria cell and it is not observable under normal light microscope.? a-Bradford assay. b-Enzymatic activity assay. c-PCR assay. d-Plaque assay. Q3)Transmission electron microscopy (TEM) is suitable to be used to study the virus component such as? a-size b-types of capsid c-structured d-nucleic acid strand Q4)A...
Which type of satellite imagery is most useful for detecting the jet stream from space? A) water...
Which type of satellite imagery is most useful for detecting the jet stream from space? A) water vapor B) infrared C) enhanced infrared D) visible
QUESTION 79 A virus with an ambisense genome is which of the following: A contains both...
QUESTION 79 A virus with an ambisense genome is which of the following: A contains both a plus-strand and minus-strand in each virus particle B.makes both plus-strand and minus-strands, but only packages the plus-strand OC. each genome is partially plus-strand and partially minus-strand D.contains either a plus-strand or minus-strand in each virus particle OE. able to be replicated both 5' to 3' and 3 to 5 QUESTION 80 The burst size for a virus is defined as the: A. the...
Which of the following proteins is NOT involved in DNA virus induced cell transformation? a) T...
Which of the following proteins is NOT involved in DNA virus induced cell transformation? a) T antigen b) retinoblastoma protein (Rb) c) E2f transcription factors d) Pkr e) p53
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
9) Which of the following is the most common pathway taken by a newly synthesized protein...
9) Which of the following is the most common pathway taken by a newly synthesized protein that will be secreted by a cell? A) rough ER -- Golgi - transport vesicle - plasma membrane B) rough ER - Golgi - transport vesicle nucleus C) rough ER → lysosome nucleus - plasma membrane D) Golgi rough ER lysosome transport vesicle plasma membrane 10) A newly discovered unicellular organism isolated from acidic mine drainage is found to contain a cell wall, a...
Cancer Biology 8. Re-expression of telomerase can confer immortality to emerging clones of tumor cells, and...
Cancer Biology
8. Re-expression of telomerase can confer immortality to emerging clones of tumor cells, and was originally viewed as an attractive target for drug discovery. However, which of the following best explains the lack of therapeutic efficacy for telomerase inhibitors? a. Telomerase alone is sufficient for transformation in human cells. b. Telomerase is required for the maintenance of somatic cell populations. c. Too many post-inhibition cell doublings would be required to see anti-tumor efficacy. d. Telomerase has sequence and...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
22. (2 pts) The following step(s) occur in replication of both Bdellovibrio and a lytic virus...
22. (2 pts) The following step(s) occur in replication of both Bdellovibrio and a lytic virus such as T4, pathogens of E. coli. A. The genetic material of the pathogen is injected into the host cell B. The pathogen carbohydrates in the host to replicate itself. uses C. The host cell lyses, releasing the replicated pathogen D. The host cell DNA polymerase replicates the pathogen genome. 23. (2 pts) Phage are composed of nucleic acid and protein. Which of the...
Which of the following would most likely not be useful inputs to a system that helps...
Which of the following would most likely not be useful inputs to a system that helps managers forecast sales using data analytics and machine learning? A. Details about potential customers B. Details about new management techniques to be implemented next month C. Details surrounding last month's disappointing sales volume D. Details about the company's existing customers Which of the following is a variable cost if the cost object is a product? A. Insurance premiums paid during the year B. Property...
QUESTION 79 A virus with an ambisense genome is which of the following: A contains both a plus-strand and minus-strand in each virus particle B.makes both plus-strand and minus-strands, but only packages the plus-strand OC. each genome is partially plus-strand and partially minus-strand D.contains either a plus-strand or minus-strand in each virus particle OE. able to be replicated both 5' to 3' and 3 to 5 QUESTION 80 The burst size for a virus is defined as the: A. the...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
9) Which of the following is the most common pathway taken by a newly synthesized protein that will be secreted by a cell? A) rough ER -- Golgi - transport vesicle - plasma membrane B) rough ER - Golgi - transport vesicle nucleus C) rough ER → lysosome nucleus - plasma membrane D) Golgi rough ER lysosome transport vesicle plasma membrane 10) A newly discovered unicellular organism isolated from acidic mine drainage is found to contain a cell wall, a...
Cancer Biology
8. Re-expression of telomerase can confer immortality to emerging clones of tumor cells, and was originally viewed as an attractive target for drug discovery. However, which of the following best explains the lack of therapeutic efficacy for telomerase inhibitors? a. Telomerase alone is sufficient for transformation in human cells. b. Telomerase is required for the maintenance of somatic cell populations. c. Too many post-inhibition cell doublings would be required to see anti-tumor efficacy. d. Telomerase has sequence and...
Question 29 (1 point) Select which of the following enzyme characteristics would be most useful in diagnostic decision making. a) Enzyme requires a purification step prior to analysis Enzyme is distributed in most tissues, high specificity, low sensitivity and demonstrates b) a short lag time and long elimination time. Enzyme has high sensitivity, high specificity, and demonstrates a short lag time and long c) elimination time. d) Enzyme is cleared in the urine. Question 30 (1 point) Which one of...
22. (2 pts) The following step(s) occur in replication of both Bdellovibrio and a lytic virus such as T4, pathogens of E. coli. A. The genetic material of the pathogen is injected into the host cell B. The pathogen carbohydrates in the host to replicate itself. uses C. The host cell lyses, releasing the replicated pathogen D. The host cell DNA polymerase replicates the pathogen genome. 23. (2 pts) Phage are composed of nucleic acid and protein. Which of the...
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