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1 vote
The two long polynucleotide chains of DNA are held together by.

A. Hydrogen bonds. B. Covalent bonds. C. Metallic bonds. D. Ionic bonds. E. Polar covalent bonds.

1 Answer

4 votes

Answer:

Hydrogen bonds

Step-by-step explanation:

Hydrogen bonds between complementary bases if im not wrong

User Pitosalas
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