The relative amounts of each nitrogenous base are tabulated here for four different viruses. For each virus listed in the following table, indicate whether its genetic material is DNA or RNA and whether it is single stranded or double stranded. Explain your reasoning. Virus т G A 12 12 II 23 16 16 23 III 34 42 18 39 IV 24 35 27 17

The relative amounts of each nitrogenous base are tabulated here for four different viruses. For each virus listed in the following table, indicate whether its genetic material is DNA or RNA and whether it is single stranded or double stranded. Explain your reasoning. Virus т G A 12 12 II 23 16 16 23 III 34 42 18 39 IV 24 35 27 17

Biology: The Unity and Diversity of Life (MindTap Course List)

14th Edition

ISBN:9781305073951

Author:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Publisher:Cecie Starr, Ralph Taggart, Christine Evers, Lisa Starr

Chapter8: Dna Structure And Function

Section: Chapter Questions

Problem 2DAA: HersheyChase Experiments The graph shown in FIGURE 8.5 is reproduced from an original 1952...

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The relative amounts of each nitrogenous base are tabulated here for four different viruses. For each virus listed in the following table, indicate whether its genetic material is DNA or RNA and whether it is single stranded or double stranded. Explain your reasoning. Virus T C U G A I 0 12 9 12 9 II 23 16 0 16 23 III 34 42 0 18 39 IV 0 24 35 27 17
The base composition of an RNA virus was analyzed and found tobe 14.1% A, 14.0% U, 36.2% G, and 35.7% C. Would you concludethat the viral genetic material is single-stranded RNA ordouble-stranded RNA?
given below is a small slice of a large sequence of protein taken from ORF1a polyprotein of Severe acute respiratory syndrome coronavirus 2 (isolate: wuhan-1). Convert the following sequence into protein strand using one letter code: 5'-ACCAACCAACTTTCGATCTCTTGTAGATCT-3'
What percent of guanine exist in virus genome if it contained 35% if adenine in double stranded RNA genome after isolating it from a virus?
The analysis of the nitrogenous bases of the nucleic acid of a newly discovered virus showed 20% adenine, 40% guanine, 10% thymine, and 30% cytosine. The viral nucleic acid is most likely ___________.
A particular virus with DNA as its genetic material has the following proportions of nucleotides: 20% A, 35% T. 25% G, and 20% C. How can you explain this result?
The base composition of an RNA virus was analyzed and found to be 14.1% A, 14.0% U, 36.2% G, and 35.7% C. Would you conclude that the viral genetic material is single-stranded RNA or doublestranded RNA?
Heinz Shuster collected the following data on the base composition of ribgrass mosaic virus (H. Shuster, in The Nucleic Acids: Chemistry andBiology, vol. 3, E. Chargaff and J. N. Davidson, Eds. New York: Academic Press, 1955). On the basis of this information, is the hereditary information of the ribgrass mosaic virus RNA or DNA? Is it likely to be single stranded or double stranded?
Heinz Shuster collected the following data on the base composition of ribgrass mosaic virus (H. Shuster, in The Nucleic Acids: Chemistry and Biology, vol. 3, E. Chargaff and J. N. Davidson, Eds. New York: Academic Press, 1955). On the basis of this information, is the hereditary information of the ribgrass mosaic virus RNA or DNA? Is it likely to be single stranded or double stranded? Percentage A G C T U Ribgrass mosaic virus 29.3 25.8 18.0 0.0 27.0
Under some conditions, it is possible to obtain nucleicacid–free protein coats (capsids) of certain viruses. Under theelectron microscope, these capsids look very similar tocomplete virions. What does this tell you about the role ofthe virus nucleic acid in the virus assembly process? Wouldyou expect such particles to be infectious?
German measles results from an infection of the rubella virus, which can cause a multitude of health problems in newborns. What conclusions can you reach from a nucleic acid analysis of the virus that reveals an A + G/U + C ratio of 1.13?
You are a virologist studying a newly isolated viral strain and have sequenced its genome. You find that the genome contains 25% A, 55% G, 20% C, and 10% U. Which of the following conclusions is likely correct? This is a single-stranded RNA virus This is a single-stranded DNA virus This is a double-stranded RNA virus This is a double-stranded DNA virus No conclusions can be drawn from this information