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Nesterboy [21]
3 years ago
10

17.

Biology
1 answer:
Vanyuwa [196]3 years ago
7 0
D new matter is created. in chemical reactions the chemicals form to make a new substance.
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The ionosphere is
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the layer of the earth's atmosphere that contains a high concentration of ions and free electrons and is able to reflect radio waves. It lies above the mesosphere and extends from about 50 to 600 miles above the earth's surface.

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Which two statements are true for the leading strand in DNA?
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It is synthesized toward the replication fork and it is synthesized in the 5′ to 3′ direction.

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The DNA synthesis is continuous in the leading strand. It is synthesized in the 5' to 3' as DNA synthesis always takes place in this direction. This is because dNTP ( deoxyribonucleoside triphosphate) provides free 3' OH group where new dNTP can be added by the enzyme DNA polymerase.

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In the past, human populations were controlled by:
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<span>In the past, human populations were controlled by </span>Disease and Famine
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