DNA History and Structure

Front

Where is DNA located inside of eukaryotic cells?

Back

Nucleus

Front

Why is DNA important?

Back

It serves as the blueprint for traits of all living things.

Front

What are the three components of a nucleotide?

Back

Sugar, phosphate, nitrogen base.

Front

Which 2 molecules form the sides (backbone) of the DNA ladder?

Back

Deoxyribose sugar and phosphate.

Front

Nucleotides are made up of a sugar, phosphate, and...?

Back

Nitrogenous base.

Front

What is the structure of DNA?

Back

A double helix composed of two strands of nucleotides.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine, thymine, cytosine, guanine.

Front

What base pairs with adenine in DNA?

Back

Thymine.

Front

What is the role of DNA polymerase?

Back

It synthesizes new DNA strands during replication.

Front

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

Back

It forms the backbone of the DNA strand.