Flashcards in Chapter 19 Deck (13):
Are viruses cells?
What is a virus?
Is a very small infectious particle consisting of nucleic acids enclosed in a protein coat.
What is a capsid?
Is the protein shell that encloses the viral genome.
What are bacteriophages also called?
What do phages do?
What's a retro virus?
It uses reverse transcriptase to copy their RNA genome into DNA. (HIV AND AIDS)
What is the provirus?
The viral DNA that is integrated into the host genome.
What is horizontal transmission?
Entering through damaged cell walls.
What is vertical transmission?
Inheriting the virus from a parent.
What are the two modes in which plants spread diseases?
Vertical & horizontal transmission
What are viroids?
Small circular RNA molecules that infect plants and disrupt their growth.
What are prions?
Slow-acting indestructible infectious proteins that cause brain diseases in mammals