AP Biology DNA Structure

Front

What are the two types of nitrogenous bases in DNA?

Back

Purines and Pyrimidines.

Front

What are the purines found in DNA?

Back

Adenine (A) and Guanine (G).

Front

What are the pyrimidines found in DNA?

Back

Cytosine (C) and Thymine (T).

Front

What is the structure of a nucleotide?

Back

A nucleotide is composed of a phosphate group, a sugar (deoxyribose in DNA), and a nitrogenous base.

Front

What is the significance of base pairing in DNA?

Back

Base pairing ensures accurate replication and transcription of genetic information.

Front

What is the complementary base pair for Adenine?

Back

Thymine (A-T).

Front

What is the complementary base pair for Cytosine?

Back

Guanine (C-G).

Front

How does the sequence of nitrogen bases affect genetic information?

Back

The sequence of nitrogen bases encodes the genetic information that determines traits.

Front

What part of DNA varies among individuals?

Back

The order of nitrogen bases.

Front

What is the role of the phosphate group in a nucleotide?

Back

The phosphate group links nucleotides together to form the DNA backbone.