What type of bonds hold complementary base pairs together in a DNA double helix?
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a
glycosidic bonds
b
covalent bonds
c
hydrogen bonds
d
peptide bonds
c
hydrogen bonds
In a DNA double helix, the complementary base pairs are held together by hydrogen bonds. Adenine (A) pairs with thymine (T) via two hydrogen bonds, and cytosine (C) pairs with guanine (G) via three hydrogen bonds. These hydrogen bonds are crucial for the structure of DNA and for the accurate replication of the genetic material during cell division.