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solmaris [256]
2 years ago
10

In a topoisomerase reaction, the _____ is used as the first nucleophile and the _____ is used as the second nucleophile.

Biology
1 answer:
Alchen [17]2 years ago
8 0

Answer:

a. hydroxyle in tyrosine

b. 3' OH

Request: Please mark me as the Brainliest.

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Dafna1 [17]

Answer:

C. could not provide a mechanism for moving continents

Explanation:

Without the discovery of magnetic reversals recorded on the ocean floor, scientists  could not provide a mechanism for moving continents.

Magnetic reversals are responsible for geological shifts and depend on the distribution of tectonic plates that causes movements of continents.

Asymmetric movement of tectonic plates leads to movement of continents  and the degree of asymmetry varies with the same rythm of the magnetic reversal rate.

Hence, discovery of magnetic reversals are important to identify the mechanism for moving continents.

6 0
3 years ago
What is the difference between aerobic and anaerobic respiration?
stepan [7]
Anaerobic respiration<span> in muscles. Glucose is not completely broken down, so much less energy is released than during </span>aerobic respiration<span>. There is a build-up of lactic acid in the muscles during vigorous exercise. The lactic acid needs to be oxidised to carbon dioxide and water later. Hope this helps!</span>
7 0
3 years ago
The photo shows a male peacock displaying his beautiful
VMariaS [17]

Answer: D. It increases the bird's chances of finding a mate.

Explanation:

As the question states, it's beautiful for the mate to see.

7 0
2 years ago
Read 2 more answers
Sandy is 3 years older than twice Darren's age.
docker41 [41]

How old is Darren? we need to know his age before we answer

6 0
3 years ago
WILL VOTE BRAINLIEST IF RIGHT
lora16 [44]
The stomach is the correct answer it is lined with an digestive enzyme called pepsin.
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