Answer:
The nucleus at the central part of the cheek cell contains DNA. When a drop of methylene blue is introduced, the nucleus is stained, which makes it stand out and be clearly seen under the microscope.
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Correct, sorry i dont know what your asking
Answer:
The conditions under which a particular enzyme is most active are called the optimum conditions
Explanation:
When an enzyme is most active the rate of the biological reaction it catalyses is highest. The bacterium Thermus aquaticus lives in hot springs. Its enzymes have an optimum temperature of around 70 oC.
I believe the answer is a mutation.
Be there is different germs
