Which of the following is an example of a sterilizing gas that kills microbes?
A) Ethylene oxide (EtO)
B) Betapropiolactone (BPL)
C) Vaporized hydrogen peroxide (VHP)
D) All of the above
Ans: D) All of the above
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RNA viruses encode host restriction systems designed to destroy host DNA
Indicate whether the statement is true or false.
The planets of our solar system were formed by the collisions of ____.
a. meteors b. asteroids c. comets d. moons e. existing planets
Assuming that the probability of having a female child is 50% and the probability of having a male child is also 50%, what is the probability that a couple's first-born child will be female and that their second-born child will be male?
A) 20% B) 25% C) 50% D) 75%
Virions attach to a target host cell by means of (capsules/capsids/ligands)
What will be an ideal response?