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The nucleotide adenine forms a bond only with the nucleotide thymine. Therefore, if 13% of the DNA strand is adenine, 13% of the DNA strand will be thymine. Therefore, the correct answer is a: 13%.
Answer:
A: follice-stimulating hormone
The Krebs cycle(or citric acid cycle) will not take place if there is no oxygen or low amounts of oxygen available(in anaerobic conditions)
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