DNA (Structure only)

Front

What is the structure of DNA called?

Back

Double helix.

Front

What is a nucleotide?

Back

The basic building block of DNA, consisting of a sugar, a phosphate group, and a nitrogen base.

Front

In which organelle is DNA usually found in eukaryotic cells?

Back

Nucleus.

Front

What are the four nitrogen bases in DNA?

Back

Adenine, thymine, cytosine, and guanine.

Front

What pairs with adenine in DNA?

Back

Thymine.

Front

What pairs with cytosine in DNA?

Back

Guanine.

Front

What is the role of hydrogen bonds in DNA?

Back

They hold the two strands of the double helix together by pairing the nitrogen bases.

Front

What is the sugar component of DNA?

Back

Deoxyribose.

Front

What is the function of DNA?

Back

To store and transmit genetic information.

Front

What is a gene?

Back

A segment of DNA that contains the instructions for making a specific protein.