DNA Structure and Replication

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 nitrogenous bases found in DNA?

Back

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

Front

Which nitrogenous base pairs with Adenine in DNA?

Back

Thymine pairs with Adenine in DNA.

Front

What is the role of the enzyme DNA polymerase?

Back

DNA polymerase is an enzyme that synthesizes new DNA strands by adding nucleotides to a growing DNA chain during replication.

Front

Where does DNA replication occur in a cell?

Back

DNA replication occurs in the nucleus of the cell.

Front

What is the cell cycle stage during which DNA is replicated?

Back

DNA is replicated during the Interphase stage of the cell cycle.

Front

What is a mutation?

Back

A mutation is a change in the DNA sequence that can lead to changes in the structure and function of proteins.

Front

What is the function of enzymes in biological processes?

Back

Enzymes are proteins that act as catalysts to speed up chemical reactions in biological processes.

Front

What is the structure of DNA?

Back

DNA has a double helix structure, consisting of two long strands of nucleotides twisted around each other.

Front

What is complementary base pairing?

Back

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