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Biology

TermDefinition
viruses nonliving particle made up of nucleic acids, sometimes lipids, and proteins. Viruses can reproduce only by infecting living cells
capsid protein coat surrounding the virus
bacteriophages Viruses that infect bacteria
lytic infection the virus enters the cell, makes copies of itself, causing the cell to burst or lyse.
lysogenic infection a host cell is not immediately taken over
prophage Bacteriophage DNA that becomes embedded in the bacterial host's DNA.
retroviruses RNA viruses
prokaryotes unicellular organisms that lack a nucleus
bacilli rod-shaped prokaryotes
cocci spherical prokaryotes
spirilla spiral and corkscrew shaped prokaryotes
binary fission when a prokaryote has grown so that it has nearly doubled in size, it replicates its DNA and divides in half, producing two identical cells.
Endospore when growth conditions becomes unfavorable
conjugation when prokaryotes exchange genetic information
pathogens disease-causing agents
vaccine a preparation of weakened or killed pathogens or inactivated toxins
antibiotics drugs that can attack a bacterial infection
emerging disease an unknown disease that appears in a population for the first time or a well known disease that suddenly becomes harder to control
prions tiny protein particles
Created by: spsp
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