Determine the symmetry group of the outer shell of the cross sec- tion of the human immunodeficiency virus (HIV) shown below. George V Kelvin
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![Determine the symmetry group of the outer shell of the cross sec-
tion of the human immunodeficiency virus (HIV) shown below.
George V Kelvin](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F859cc8ad-299d-46a3-847b-b2dcfbe50cbc%2Ff14c7b3f-615d-4023-9811-9272d4b7af3c%2Flld0dsh.jpeg&w=3840&q=75)
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- Notice the white line indicating a reference for 100 nm. Which 3 viruses have a diameter (width) roughly equal to 100 nm?Unknown virus dsDNA contains 36% AT on a molar basis. What are the mole percentages of A, G and C respectively?How many protein subunits would be present in a complex icosahedral virus particle with a triangulation (T) number of 8?
- Part B - Viral Classification: The Baltimore Scheme The Baltimore classification scheme is based on the relationship between the virus' genome and its mRNA. For the following choices, indicate which viruses would fall into each classification: 1) require reverse transcriptase to copy the information in their own genome to DNA; 2) can replicate and be transcribed in the same manner as the cell's own genetic material; and 3) a replicative form of DNA must be produced and is used for both replication and transcription. Drag and drop choices to the bins they describe. double-stranded DNA viruses Requires reverse transcriptase double-stranded RNA viruses retroviruses double-stranded DNA viruses that have an RNA intermediate Functions similarly to cell's own genetic material plus-strand RNA viruses minus-strand RNA viruses Reset Help plus-strand DNA viruses Uses a replicative form of DNASyn5 is a virus that infects photosynthetic bacteria belonging to the genus Synechococcus. The Syn5 virion is icosahedral (660 Å in diameter) with a short tail and an appendage called a horn. The horn is located on a vertex directly opposite the tail. Syn5 follows the typical five steps observed for most viruses when they multiply, and progeny viruses are released when the host lyses. The assembly of Syn5 virions involves several proteins, including capsid proteins, scaffolding proteins, a portal protein, a terminase, tail proteins, and horn proteins. To better understand the assembly of Syn5 virions, scientists used a type of microscopy called Zernike phase contrast electron cryotomography. This type of microscopy improves the contrast typically seen for conventional cryotomography. In their studies, the scientists observed several different developing virus particles in infected cells. The particles were: (1) 660 Å icosahedron containing DNA and having a tail; (2) 660 Å icosahedron…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
- DNA from a newly discovered virus was purified, and UV light absorption was followed as the molecule was slowly heated. The absorbance increase at the melting temperature was only 10%. What does this result tell you about the structure of the viral DNA?2.4 SARS-CoV-2 is mainly transmitted through respiratory droplets when an infected person sneezes, coughs, or talks. How might this relate to the size and/or structure of viruses?Give detailed Solution with explanation needed (don't copy the answer other site
- A virus has a double-stranded DNA genome that has 800 base-pairs. Of these, 21 % are thymine. How many guanine nucleotides would be present in this virus? Show all your calculations. please answer my question i would really appriciate itExplain the nucleotide composition % obtained from the bacterial virus M13 is peculiar.Give typing answer with explanation and conclusion to all parts