B. DNA is heated to separate strands
<span>First.PCR reaction</span>
The Law of Superposition.
The Law of Superposition states that each layer is younger than the one beneath it.
Answer:
I feel it's to easily differentiate the positive from the negative...... like in gram staining of bacteria, the colour tell us which bacteria is gram positive or gram negative...... I just feel that this is science and it is advisable to know what the opposite result of an experiment should look like.
Answer:
from 60 to 100 beats per minute
