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The DNA double helix is a stable structure. Its structure is similar to a ladder. The antiparallel sugar-phosphate backbones form the supports of the ladder, and the base pairs form its rungs. How is it
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The DNA double helix is a stable structure. Its structure is similar to a ladder. The antiparallel sugar-phosphate backbones form the supports of the ladder, and the base pairs form its rungs. How is it possible for the bases to fit within the double helix or ladder?

User Yassine Bridi
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Answer:

Step-by-step explanation:

It is possible to fit the bases within the double helix because the pyrimidines I.e cytosine and thymine are always bonded to the purines I.e adenine and guanine. This process is called complementary base pairing and the bond present between the purine and pyrimidine bases is the hydrogen bond.

User Jsievers
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