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Maksim231197 [3]
3 years ago
8

What is the best source of nuclear DNA when working with hair samples?

Biology
1 answer:
horrorfan [7]3 years ago
6 0
Nuclear DNA is present in the nucleus of eukaryotic cells. When working with the DNA samples, the best source of nuclear DNA is hair root that anchors the whole shaft of hair. Hair root possesses cells that are called as keratinocytes.
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Which curve shows the course of the reaction in the presence of an enzyme--the black curve or the red curve? Which line represen
nikklg [1K]
I found the attached image on the internet and it really helps complete this exercise.

First question:
In the presence of an enzyme, the course of the reaction is shown by the red curve. The necessary energy to make a reaction occur is less when there is an enzyme to help the reaction happen. Enzymes work as catalysts that act over substrates converting them into different molecules in a much accelerated way then it would happen without the enzyme's help, if it would happen at all.

Second question:
The activation energy is represented by line B. The activation energy is the energy needed to be available for a reaction to happen. If we compare it with line A, which represents the activation energy necessary for a reaction without an enzyme, we can see how much less energy is necessary to dispend when an enzyme is part of the reaction. Line C represents the energy resultant from the reaction.

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2 years ago
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Verizon [17]

Answer:

metabolism

Explanation:

7 0
3 years ago
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Answer:

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Hope this helps! :)

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Nookie1986 [14]

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Explanation:

4 0
3 years ago
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Answer:

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Explanation:

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4 0
2 years ago
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