Which of these features is unique to the retroviruses?Multiple choice question.Have a lipid envelope outside of their capsidConvert viral RNA into DNAConvert viral DNA into RNAPossess protein spikes that interact with host cellular receptors

Which of the following models best depicts how the genetic information in a retrovirus is eventually translated into proteins?Choose 1 answer:Choose 1 answer:(Choice A)   DNA in the retrovirus → mRNA in the host cell → ProteinsADNA in the retrovirus → mRNA in the host cell → Proteins(Choice B)   RNA in the retrovirus → DNA in the host cell → RNA in the host cell → ProteinsBRNA in the retrovirus → DNA in the host cell → RNA in the host cell → Proteins(Choice C)   DNA in the retrovirus → RNA in the host cell → ProteinsCDNA in the retrovirus → RNA in the host cell → Proteins(Choice D)   RNA in the retrovirus → mRNA in the host cell → ProteinsDRNA in the retrovirus → mRNA in the host cell → Proteins

Which of the following statements incorrectly describes viral spikes?ANSWERSpikes may be recognized by the host immune system that mounts an immune response to them.Spikes have an important role in determining what species and tissues the virus can infect.Lipid-based spikes make up the envelope that surrounds the capsid.Spikes are glycoprotein extensions that help viruses attach and gain entry to host cells.

Discuss the characteristics and life cycle of retrovirus.

In the 1970s, researchers studying the human genome discovered that humans have viruses in their DNA. These so-called human endogenous retroviruses (HERVs) represent remnants of once-infectious viruses that became fixed in our genome. While some of them still have the potential to produce virus-like particles, HERVs have lost their ability to generate infectious virions. _______ they persist in our DNA as viral fossils that are passed on from generation to generation.Which choice completes the text with the most logical transition?

Select all of the following that are true about a retrovirus.Multiple select question.It is not a virus.HIV is not a retrovirus.It has RNA.A retrovirus uses reverse transcription.A retrovirus is not contagious.