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zvonat [6]
3 years ago
12

5. Characteristics such as a widow's peak or attached earlobes are determined by

Biology
1 answer:
Troyanec [42]3 years ago
8 0

Answer:

Explanation:

The four types of nitrogen bases are adenine (A), thymine (T), guanine (G) and cytosine (C). The order of these bases is what determines DNA's instructions, or genetic code.

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