DNA Structure and Replication

Front

What is the structure of a DNA molecule?

Back

A DNA molecule is structured as a double helix.

Front

Why is DNA important in living organisms?

Back

DNA serves as the blueprint for making proteins in living organisms.

Front

What is the first step in DNA replication?

Back

The first step in DNA replication is when enzymes 'unzip' the DNA molecule by breaking the hydrogen bonds.

Front

What is the goal of DNA replication?

Back

The goal of DNA replication is to make an identical copy of DNA.

Front

What are nucleotides composed of?

Back

Nucleotides are composed of sugar, phosphate, and a nitrogen base.

Front

What are the four nitrogen bases found in DNA?

Back

The four nitrogen bases in DNA are adenine, thymine, cytosine, and guanine.

Front

What base pairs with adenine in DNA?

Back

Thymine pairs with adenine in DNA.

Front

What is the role of DNA polymerase in DNA replication?

Back

DNA polymerase adds free nucleotides to the growing DNA strand during replication.

Front

What is the significance of the hydrogen bonds in DNA?

Back

Hydrogen bonds hold the two strands of the DNA double helix together.

Front

What is the difference between DNA and RNA?

Back

DNA contains deoxyribose sugar and thymine, while RNA contains ribose sugar and uracil.