Which bases always match up?
What are the sides of the strand of DNA made of?
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Which bases always match up?
What are the sides of the strand of DNA made of?
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Answer:
In DNA, the bases that always match up are Adenine (A) with Thymine (T) and Cytosine (C) with Guanine (G). This is known as complementary base pairing and is a fundamental concept in DNA structure and replication.
The sides of the strand of DNA are made up of alternating sugar (deoxyribose) and phosphate molecules, which form the backbone of the molecule. The nitrogenous bases (A, T, C, G) are attached to the sugar molecules and extend inward toward the center of the molecule, where they form base pairs through hydrogen bonding.