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uysha [10]
3 years ago
10

How do data collected from ice cores provide evidence for climate change.

Biology
1 answer:
luda_lava [24]3 years ago
3 0

Answer:

Explanation:

Ice cores can tell scientists about temperature, precipitation, atmospheric composition, volcanic activity, and even wind patterns. The thickness of each layer allows scientists to determine how much snow fell in the area during a particular year.

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If one strand of DNA has the base sequence TTCCGGAA The complementary strand has which of the following sequence?
Mazyrski [523]

Answer:

If a DNA strand has the base sequence TTCCGGAA the complementary strand has the sequence AAGGCCTT.

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A DNA molecule is constructed from sequences of its four nitrogenous bases: adenine, thymine, guanine and cytosine. Since DNA is made up of two strands, the sequence of nitrogenous bases of one strand is complementary to the other .

The complementarity of the bases is a characteristic of the nitrogenous bases in the nucleic acids to combine with their complementary base, which is the same as saying that purines complement with pyramidines.

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In this way, given a sequence on a DNA strand :

<em>     T-T-C-C-G-G-A-A</em>

The complementary strand will have this sequence:

<em>     A-A-G-G-C-C-T-T</em>

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Why different restriction enzymes make different dna fragments?
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Bc they cut DNA in different shapes
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