Of the viruses highlighted in Section 33.4, predict which of the following would be able to make viral proteins if nothing more than its genome were injected into a suitable host cell. a. pea mosaic ([+]ssRNA) virus b. bluetongue (dsRNA) virus c. measles ([−]ssRNA) virus d. human immunodeficiency (RNA reverse-transcribing) virus

Video transcript

Hello everyone and welcome to today's video. So today we have that which of the following is not capable of producing viral proteins when injected alone into a suitable whole cell. So one thing that we need to remember and the way that we're going to be able to solve this problem is that we need to remember what we need to produce viral proteins or proteins in general and to produce proteins we need M. RNA. But most importantly when it's single stranded RNA. And the reason for this is that this is translated into proteins or viral proteins. So if we have double stranded as we see here RNA. Or if we have reverse transcribing DNA viruses, these viruses won't be able to translate their user M. R. N. A. Or their genetic info directly into proteins. There are certain modifications that we need to that they need to undergo in order for them to be ready for translation. Because of these the only viruses that will be able to translate their genetic information directly into proteins will be this positive sense single stranded RNA viruses. Neither diverse transcribing double stranded DNA viruses or double stranded RNA viruses will be able to undergo this process because of these or answer choice will be answer choice D. Both A and C. I really hope this video helped you and I hope to see you on the next one