DNA Structure & Replication 22.23

Front

What base does adenine pair with in DNA?

Back

Thymine

Front

What does DNA stand for?

Back

Deoxyribonucleic acid

Front

Why does DNA replicate?

Back

It needs to make a copy before the cell divides so each cell has the complete DNA.

Front

What is the first step in DNA replication?

Back

DNA unzips.

Front

Which two molecules form the backbone of a DNA molecule?

Back

Deoxyribose sugar and phosphate.

Front

What are the four bases found in DNA?

Back

Adenine, Thymine, Cytosine, Guanine.

Front

What is the role of DNA polymerase in DNA replication?

Back

It adds nucleotides to the growing DNA strand.

Front

What is the structure of DNA?

Back

A double helix.

Front

What is the function of DNA?

Back

To store and transmit genetic information.

Front

What is a nucleotide?

Back

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