Question

1. describe how the nitrogenous bases in dna pair up with each other.

Explanation:

In DNA, nitrogenous bases pair specifically. Adenine (A) pairs with Thymine (T) via two hydrogen bonds. Guanine (G) pairs with Cytosine (C) via three hydrogen bonds. This complementary base - pairing is crucial for DNA replication and transcription.

Answer:

Adenine pairs with Thymine (A - T), and Guanine pairs with Cytosine (G - C).