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strojnjashka [21]
3 years ago
14

An atom on the periodic table can be identified by its

Biology
1 answer:
zaharov [31]3 years ago
4 0

Answer:

The number of protons in it.

Explanation:

There are two properties that can be used to identify an element:

  • the atomic number  
  • the number of protons in an atom.

The number of neutrons and number of electrons are frequently equal to the number of protons, but can vary depending on the atom in question

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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)
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  • PCR-grade water
  • Deoxynucleoside triphosphates: dATP, dGTP, dCTP, dTTP (act as bricks in the construction of DNA molecules).
3 0
3 years ago
Which of the following coordinate and control immune response?
qwelly [4]
I think it’s T lymphocytes?
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3 years ago
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What is the difference between a species and a population?
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