Hey .... here the a).Cocaine is the correct answer of your question
Very highly because we are in taking it and also purifying it to where there is less and less every year .
Hope this helps
-tae
Answer:E. Adenine and Guanine
Explanation:
They are double <u>double carbon- nitrogen rings with four nitrogen atoms</u> bases found in DNA and RNA. Purines always pair with pyrimidines(cytosine and thymine) to form a double helix structure.This precise paring ensured that the DNA has a complementary structure.
This paring of purines with pyrimidines is by hydrogen bonds. This is to ensure easily unwinding during replication, that is formation of new DNA molecules.
purines bases are also used for cell protein synthesis fro cell division.
Answer:
Formation occurs in the bone marrow.
Explanation:
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