WILL RATE!!! After viral proteins are made, the video shows these proteins enter
ID: 134679 • Letter: W
Question
WILL RATE!!!
After viral proteins are made, the video shows these proteins entering the host nucleus and assembled structures exit the nucleus. What are these structures that leave the nucleus? (also referred to as "baby viruses"). Select all the components of these structures.
https://www.youtube.com/watch?v=Rpj0emEGShQ
Question options:
(-)ss RNA segment
neuraminidase
nucleoprotein
RNA dependent RNA polymerase
matrix protein
capsid protein
(-)ss RNA segment
neuraminidase
nucleoprotein
RNA dependent RNA polymerase
matrix protein
capsid protein
Explanation / Answer
Answer:
The structures which are leaving the nucleus are the multiple copies of the genome of the future viruses. When the virus gets inside a cell, its genome gets fragmented and enters inside the nucleus so that it can make the multiple copies carrying same genetic information. This multiplication work is carried out by an enzyme called RNA polymerase.These RNA copies exit the nucleus and enters the cytoplasm whereby they are manufactured into proteins with the help of ribosomes. The finishes proteins ones again enters into the nucleus for the final assembly of the viral proteins. So, after the final assembly process, a finished baby virus or assembled virus emerges out of the nucleus.
So, from the given options above, an assembled virus or a baby virus wil have the following components-
1. (-) ss RNA segment, as its genetic material.
2. Neuraminidase, so that it can digest the plasma membrane of the cell and causes cell lysis inorder to come out.
3. Nucleoprotein, that forms a sheath around the genetic material.
4. Matrix protein, which links the outer virus sheath to its core.
5. Capsid protein, that forms an infectious protein coat on the surface whose basic monomer is called capsomere.
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