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elena-s [515]
3 years ago
11

How do the nitrogenous bases always pair up in a dna molecule?

Biology
1 answer:
torisob [31]3 years ago
3 0
Hi!

I hope this answer helps: The nitrogen bases pair up in twos: cytosine with guanine and adenine with thymine.<span> 
Please mark me the brainliest!!

</span>
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