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Please help me number 21 need ASAP ....

Please help me number 21 need ASAP ....-example-1
User Gazmir
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1 Answer

3 votes

Answer:

Adenine, Guanine, Cytosine, and Uracil.

Step-by-step explanation:

Please help me number 21 need ASAP ....-example-1
User Osanger
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