DNA Structure, Function, and Replication

Front

What is the purpose of DNA replication?

Back

The cell is prepared for cell division.

Front

Who discovered the rule of base pairing based on base ratios?

Back

Erwin Chargaff.

Front

What makes up the 'backbone' of a single DNA strand?

Back

Phosphate and sugar.

Front

Who built the model of DNA that helped scientists understand how DNA could replicate?

Back

James Watson and Francis Crick.

Front

DNA replication is called a ________________________ process, because each molecule has one of the original strands and a new strand built from it.

Back

Semiconservative.

Front

What are the building blocks of DNA?

Back

Nucleotides.

Front

What are the four nitrogenous bases in DNA?

Back

Adenine, Thymine, Cytosine, Guanine.

Front

What is the shape of the DNA molecule?

Back

Double helix.

Front

What is the role of DNA polymerase in DNA replication?

Back

It synthesizes new DNA strands by adding nucleotides.

Front

What is the function of the hydrogen bonds in DNA?

Back

They hold the two strands of DNA together.