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choli [55]
2 years ago
9

Hiya !! will give brainle and 20 points !

Biology
1 answer:
AfilCa [17]2 years ago
8 0
D, the black squirrels have survived because black has provided them with an advantage in this environment.
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You add the following components (in the correct volumes and concentrations) to a tube to perform a PCR reaction Buffer Magnesiu
uranmaximum [27]

Answer:

b. False

Explanation:

These components are not sufficient to successfully perform a PCR reaction. Deoxynucleoside triphosphates (dATP, dGTP, dCTP, dTTP) are missing so that the PCR reaction can occur perfectly.

The PCR technique allows a specific fragment of the DNA molecule to be amplified thousands of times in just a few hours. This technique revolutionized research in molecular biology because it had taken a long time for DNA amplification. From PCR it is possible to obtain enough copies of a part of DNA to detect and analyze the sequence that is the target of the study.

For a PCR reaction to be performed a solution with some components must be prepared. These components are:

  • Magnesium chloride buffer (to optimize reaction and act as a cofactor for polymerase)
  • Forward and reverse primers (to customize the start of the enzyme reaction)
  • DNA polymerase (Enzyme required for replication of desired DNA region.)
  • DNA Template (the DNA to be copied)
  • PCR-grade water
  • Deoxynucleoside triphosphates: dATP, dGTP, dCTP, dTTP (act as bricks in the construction of DNA molecules).
3 0
3 years ago
According to the Hertzsprung-Russell Diagram what is the luminosity of the sun
Tomtit [17]
I think it is D but I'm not sure, however, 4 seems pretty right.
6 0
3 years ago
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plzzz help i will give brainlyest Sally says that divergent plates cause the greatest, strongest Earthquakes. Marks says she's w
KatRina [158]

Answer:

Mark

Explanation:

At divergent plate boundaries, earthquakes tend to be weak and shallow. Transform plate boundaries, have shallow, but very powerful earthquakes. At convergent plate boundaries, where two continental plates collide, earthquakes are deep and also very powerful.

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2 years ago
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To survive hunter-gatherers changed their environment bya.Burning the prairies to prevent trees from growing.B.Spreading plants
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The answer is c. both (a) and (b)
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Of the following, where would we most likely find water in the form of a gas?
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