Liquid paraffin Gas bubbles
Yeast cells in
sugar solution
Indicator
solution
Tube A
Tube B
What is the purpose of the liquid paraffin in Tube A?
Tick one box.
To prevent evaporation
To stop air getting in
To stop the temperature
going up
To stop water getting in

not too sure but maybe in the hot springs.

a unit of heredity that is transferred from a parent to offspring and is held to determine some characteristic of the offspring.

answers are:

lysogenic     viral dna merges with host cell dna

lysogenic     no symptoms

lytic               viral dna takes over

lysogenic     virus does not destroy host cell

lytic               virus destroys host cell

lytic               induces symptoms of viral infection

lysogenic       cell reproduces and spreads provirus