Front

What is DNA?

Back

DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life. It is composed of two strands that coil around each other to form a double helix.

Front

What are the four bases of DNA?

Back

The four bases of DNA are Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).

Front

What is the function of DNA?

Back

The function of DNA is to store and transmit genetic information that determines the traits of an organism.

Front

What is a mutation?

Back

A mutation is any change in the DNA sequence of a gene or chromosome.

Front

What can cause mutations?

Back

Mutations can be caused by environmental factors (like radiation or chemicals) or can occur naturally during DNA replication.

Front

What is a tumor?

Back

A tumor is a mass of abnormal cells that develops when cells divide and grow uncontrollably.

Front

Where is DNA located in a cell?

Back

DNA is usually found in the nucleus of a cell.

Front

What is the backbone of a DNA molecule made of?

Back

The backbone of a DNA molecule is made of sugar and phosphate groups.

Front

What is the role of the nitrogenous bases in DNA?

Back

The nitrogenous bases (A, T, C, G) pair with each other to form the rungs of the DNA ladder, encoding genetic information.

Front

What is complementary base pairing?

Back

Complementary base pairing refers to the specific pairing of nitrogenous bases: Adenine pairs with Thymine, and Cytosine pairs with Guanine.