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prohojiy [21]
3 years ago
9

Each rung of the DNA ladder is made of

Biology
1 answer:
Bingel [31]3 years ago
4 0
Either adenine and guanine or thymine and cytosine. It is either because the first adenine pairs with thymine and guanine pairs with cytosine, So each rung will have one of the two pairs.
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