There are four different types of nucleotides in DNA, and they differ from one another by the type of base that is present: adenine (A), thymine (T), guanine (G), and cytosine (C). A base on one of the chains that makes up DNA is chemically bonded to a base on the other chain.
These preferences may have been advantageous in our evolutionary history, when food was less reliably available
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Anatomy of the meniscus: superior view of the tibial plateau ... In contrast, cells in the inner portion of the tissue appear more round and are ... Following comparison of these treatments, results showed that the combination of
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c for increase in population b for decrease
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