Please say the answer exactly how it’s written for being able to identify what you are talking about. It’s multiple choice In which of the following ways are the structure of some viruses similar to the structure of cells? Selectall that apply.O The viral envelope around some viruses is similar in structure to a cell membrane.N The size of most viruses is similar to the size of most bacterial cells.Both viruses and cells contain mitochondria for producing energy.O The RNA in retrovirus and the RNA in all cells form genes by making a DNA copy of itself.O Both contain genetic information in the form of either RNA or DNA.

Viruses are ultramicroscopic , non cellular infectious nucleo-proteins. Viruses inside a host cell…

In which of the following ways are the structure of some viruses similar to the structure of cells? Selec all that apply. O The viral envelope around some viruses is similar in structure to a cell membrane. O The size of most viruses is similar to the size of most bacterial cells. O Both viruses and cells contain mitochondria for producing energy. OThe RNA in retrovirus and the RNA in all cells form genes by making a DNA copy of itself. O Both contain genetic information in the form of either RNA or DNA.

In which of the following ways are the structure of some viruses similar to the structure of cells? Selec all that apply. O The viral envelope around some viruses is similar in structure to a cell membrane. O The size of most viruses is similar to the size of most bacterial cells. O Both viruses and cells contain mitochondria for producing energy. OThe RNA in retrovirus and the RNA in all cells form genes by making a DNA copy of itself. O Both contain genetic information in the form of either RNA or DNA.

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

Chapter15: Studying And Manipulating Genomes

Section: Chapter Questions

Problem 4SQ: For each species, all ________ in the complete set of chromosomes is the ________. a. genomes;...

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BONUS: Why do RNA viruses such as the COVID coronavirus, influenza virus and HIV have much higher mutation rates than DNA viruses such as Herpes viruses? O DNA polymerases which copy viral RNA have much higher mutation rates than RNA polymerases which copy viral DNA O RNA polymerases which copy viral RNA have much higher mutation rates than DNA polymerases which copy viral DNA RNA viral 60S ribosomes make many ore mutations than DNA viral 40S ribosomes O RNA viral gyrases make more mistakes than DNA viral helicases
What advantageous uses have viruses been shown to have? The activities of viral genes mimic those of host genes so they are useful for studying mechanisms of DNA replication and gene expression in their much more complex hosts. O Bacteria-killing viruses may play an increasing role in the war against bacterial pathogens. O All are correct. They can be used as a means to introduce foreign genes into human cells, which may serve as a basis for treatment of human diseases by gene therapy. O Insect-killing viruses may play an increasing role in the war against insect pests.
O O O A new virus is discovered. Its RNA genome encodes several proteins, including a reverse transcriptase enzyme. What can you conclude about replication of this virus? Its replication involves a double-stranded RNA intermediate Its replication involves a DNA copy of its genome Its replication depends entirely on cellular enzymes Its replication is entirely independent of cellular enzymes 00 A deficiency in Base Excision Repair (BER) would primarily sensitize you to mutations caused by radiation, X-rays O Chemicals in smoke, and UV radiation O Unavoidable, spontaneously occurring DNA damage
Which viruses have potential for the highest mutation rates? Explain RNA viruses as RNA polymerases do not proofread thus make many mistakes/mutations when viral RNA is copied RNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral DNA is copied O DNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral RNA is copied O DNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral DNA is copied
The different types of nucleic acids found in viruses include all of the following except O double-stranded DNA. O double-stranded RNA. O single-stranded DNA. O There are no exceptions here. Each of these types may be found in viruses. O single-stranded RNA.
Viruses with negative sense RNA genomes typically, make proteins by: (Ignore retroviruses, and the unusual characteristics of coronaviruses) Translation of short RNA transcripts generated by RDRP Generating a DNA copy, which is then transcribed by host RNA polymerase. Translation of the viral genome by host ribosomes. Production of a polyprotein, which must be cleaved into smaller proteins. Generating a negative sense genome copy, which is then translated by host ribosomes.
You are studying a new retrovirus. The viral protein (X) appears to play a role in the export of the viral genomes to the cytoplasm. Protein X brings viral DNA to the cytoplasm and returns back to the nucleus after genome export is complete. Researchers have developed a new drug for the virus. Following treatment with the new drug, the viral protein stays in the nucleus and cannot export the viral genomes. What is the most plausible and logical function of the drug? Use your knowledge of nuclear transport to answer this question. O A. The drug inhibits the binding of the viral protein and the viral genomes to the import receptor. B. The drug inhibits the binding of Ran-GTP to the nuclear export receptor in nucleus. C. The drug promotes the Ran GAP activity. D. The drug blocks the NLS on the viral protein.
For each species, all ________ in the complete set of chromosomes is the ________. a. genomes; library b. DNA; genome c. mRNA; start of cDNA d. cDNA; start of mRNA
1. The SARS-CoV-2 virus (causing Covid-19) has an RNA genome, which is replicated using an RNA-dependent RNA polymerase (RdRp). The structure below shows a drug that was recently developed as a treatment for infection with SARS-CoV-2 (a) Which molecule normally found in a cell does it most resemble? (You can ignore the part of the structure highlighted with a red box. This is removed by hydrolysis when the drug enters the cell). (b) Suggest a mechanism by which this molecule might inhibit infection. (c) Why is this drug unlikely to have major effects in the host? HN OH OH
Which viruses have potential for the highest mutation rates, DNA or RNA viruses? Explain O DNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral RNA is copied DNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral DNA is copied RNA viruses as DNA polymerases do not proofread thus make many mistakes/mutations when viral DNA is copied RNA viruses as RNA polymerases do not proofread thus make many mistakes/mutations when viral RNA is copied and DNA polymerases do proof read
In experiments conducted by Singer and Fraenkel-Conrat, hybrid versions of tobacco mosaic virus were produced using RNA and protein derived from different viral strains. Progeny viruses of the hybrids showed inheritance of from the hybrids. O lipids O carbohydrates O proteins ORNA O DNA
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