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Are viruses living? Discuss based from the properties of life in Biology.
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- What does it mean for viral DNA to program cells? explain in your own words as simply as possible.Which biological system contains a protein nucleocapsid surrounding 2 antiparallel polynucleotide strands (held together by hydrogen bonds), with deoxyribose sugars, but no ribose sugars? a single-stranded RNA viroid (like avocado sun blotch viroid) a double-stranded RNA virus (like the reovirus family) a single-stranded DNA virus (like fX174 virus of E. coli) a double-stranded DNA virus (like the smallpox virus) a single-stranded RNA virus (like tobacco mosaic virus)Why Bacteria and their viruses are useful ?
- Do you consider viruses to be alive? Take a position on the issue and perform research to find evidence in support of your argument. Share and discuss this evidence with your peers to come to a final consensus on whether viruses should be considered living organisms.Assume you isolate a single stranded (+) RNA virus. When you examine the proteins in the virus, you find that it does NOT contain replicase enzymes within its capsid. Which of the following is true? This virus must have a gene that encodes replicase. This virus will not be able to enter a host cell. Its genome cannot be translated (the process of translation) by the host cell ribosomes. A DNA copy of the viral genome has to be made before viral genes are expressed. This virus must lack surface antigens.Falsify and explain in detail why each choice is right or wrong (more than 3 sentences per choice) Regarding the influenza virus, which of the following is false? A. The viral mRNAs are translated on free ribosomes and bound ribosomes B. The viral envelope consists of host cell plasma membrane (phospholipid bilayer) embedded with viral glycoproteins. C. The viruses uses its own RNA-dependent RNA polymerase to synthesize an RNA molecule that is complementary to the RNA genome D. The RNA genome also serves as an mRNA, which encodes the viral capsid and envelope proteins Please answer asap and in short and content should not be palgarised please
- 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.A virophage is best descirbed as:(a) A bacteriophage that requires a helper virus(b) An animal virus that can also infect bacteria(c) A giant virus(d) A phage that is used therapeutically to treat bacterialinfections(e) A satellite virus that inhabits its helper virus (i.e., itshost virus)Are viruses considered as cells? why or why not?