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

Human Anatomy & Physiology (11th Edition)

11th Edition

ISBN:9780134580999

Author:Elaine N. Marieb, Katja N. Hoehn

Publisher:Elaine N. Marieb, Katja N. Hoehn

Chapter1: The Human Body: An Orientation

Section: Chapter Questions

Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...

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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
A virus has a double-stranded RNA genome that has 2400 base-pairs. Of these, 35 % are G:C base-pairs. How many uracil nucleotides would be present in this virus?
You have recently isolated a virus associated with a human disease. The virus particles are spherical, ~100 nm in diameter, and possess an envelope. Would you expect to find glycoproteins in the viral envelope? yes Would knowing that the particles are spherical mean that they are built with icosahedral symmetry? [Select]
OF rasc PDF Teas fill Which of the following is NOT a step in the replication of a retrovirus? A diagram illustrating the process is provided below. PDF UNOFFIC TRANSCR 59°F Mostly cloudy Virus Viral RNA Reverse transcriptase DDDDDD ↓Viral DNA Provirus mRNA mm Proteins mn Viral RNA Protease Plasma membrane Host DNA New virus O The single-stranded DNA forms a double-stranded DNA called a provirus, which is incorporated into the host cell DNA. O After a retrovirus attaches to the host cell, it injects its viral DNA and uses the host cell's machinery and materials to replicate. O After a retrovirus injects its viral RNA into a host cell, it forms a DNA strand by reverse transcription. O When the host cell replicates, a provirus produces the viral RNA needed to produce more virus particles. P O Search hun recc PDF maste omiss
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?
Explain the nucleotide composition % obtained from the bacterial virus M13 is peculiar.
Unknown virus dsDNA contains 36% AT on a molar basis. What are the mole percentages of A, G and C respectively?
Viruses are made up of the same biomolecules as cellular organisms (DNA, RNA, proteins, lipids, etc.). They infect cells and replicate themselves using resources from the host cells. Scientists discovered a previously unknown strain of virus in the tropical Pacific Ocean and it can infect higher-order eukaryotes. Initial analysis revealed that the virus is mainly composed of nucleic acids, proteins, and lipids. Chemical analysis after complete hydrolysis revealed the following building blocks (by weight): Chemical components Nucleosides Amino acids Lipids, phosphates, and carbohydrates Percentage by weight 20 30 50 Analysis of percentages of nucleosides yielded the following results (by molar ratio): Nucleosides A G T C U Percentage by mole 19 29 19 29 4 Researchers determined that the lipids found in the virus form a bilayer membrane surrounding the virus, and are obtained from the membrane of the host cell during virus maturation and exit from host cell. Further…
Molnupiravir causes widespread mutations as SARS-CoV-2 replicates its genome because in an RNA double helix molnupiravir can base pair with more than one base. Shown below are the structures the RNA bases. With which two bases does molnupiravir pair? H N-H Adenine NH-N Uracil H H-N N-HN N-H Guanine H Cytosine A. The "imino" form pairs with A; the "amino" form pairs with G. B. The "imino" form pairs with G; the "amino" form pairs with A. C. The "imino" form pairs with U; the "amino" form pairs with C. D. The "imino" form pairs with C, the "amino" form pairs with U.
Search the protein data bank (https://www.rcsb.org/)and find an image of one protein that is found the COVID-19 virus .What is the name of the protein and what does this protein do ?
The sequence shown in Figure 2 is the nucleotide sequence of a heat shock protein of Bacillus anthracis obtained from the NCBI database. >NC_005945.1:2107825-2108262 Bacillus anthracis str. Sterne chromosome ATGCGTAATTTATTTCCAGAAATAACAAAACGTCAAAATGGTATTTTTGATTTTGGACCTTCTTTATTAG AAGGGATGACAGATGCTTTCTTTAAACCGATGAACATGGATATTTTTAAAGTAGATGTTCATGAACAATC TGATAAATATACAGTGAAAGCAGATTTACCAGGTTTTCAAAAAGAAAACATTCAAGTTGAATTTGAACAA GATGTATTAACGATTCAAGCAACTAATCATAATGAAGTAGAAGAAAAAAATGAGAATGGCACATATATTC GTAAAGAACGTTCTATAGGTTCTGTAACTCGACGTTTTAGTTTTAAACAAGTTGAGGAAGAAAATGTTAG AGCGAATTACAAAGATGGCGTGTTGACAATTGAATTGCCAAAATTGAAAGAAGAAAAAAACAGTAAAACA ACAATTAATATTGAATAA Figure 2 (i) Is the nucleotide sequence above translatable into a complete protein? Justify your answer. (ii) Is the sequence above represented in the standard FASTA format? Explain your answer.
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