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Elenna [48]
3 years ago
6

which value most closely represents the amount of freshwater on earth,as a percentage of the total water on earth

Biology
1 answer:
malfutka [58]3 years ago
4 0
2 percent
The fresh water is only present in the form of glaciers and the water flowing in the lakes and the rivers. The fresh water source occupies approximately 3% of the total water present on the earth. Hence, the value closely related to the amount of the fresh on the earth is 2 percent.
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If a dna analysis reveals that a cell has 60 ng of adenine and 20 ng of cytosine, how much thymine and guanine are in the cell?
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Answer:

Thymine= 60 ng

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The complementary base pairing occurs between adenine and thymine and guanine and cytosine bases.

Explanation:

According to the Chargaff rule, a double-helical DNA molecule has an equal number or equal amount of adenine and thymine bases since adenine always pairs with thymine. Similarly, the amount of guanine base is equal to that of the cytosine base.

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