Answer:
C. He forgot to add primers.
Explanation:
The major components of a PCR include:
- A sample DNA which is the DNA that needs to be amplified.
- A DNA polymerase, an enzyme that synthesizes new DNA strands from the sample DNA.
- A primer which represents the starting sequence for the new strand of DNA to be synthesized.
- Free nucleotides in form of Deoxynucleoside triphosphates (dNTPs)
<em>The graduate student forgot to add primers which are essential as a starting point on which the synthesis of new DNA strand is based. DNA ligase is not needed for PCR, but during DNA replication.</em>
The correct option is C.
D. Soil can be considered a resource
The answer for this question is b
Your genotype<span> is your complete heritable genetic identity; it is your unique genome that would be revealed by personal genome sequencing. However, the word ...</span>