DNA Structure and Replication

Front

What are nucleotides made of?

Back

Nucleotides consist of a phosphate group, a sugar molecule, and a nitrogenous base.

Front

What is the backbone of DNA composed of?

Back

The backbone of DNA is made of alternating sugar and phosphate groups.

Front

What are the four nitrogenous bases in DNA?

Back

The four nitrogenous bases in DNA are adenine (A), thymine (T), cytosine (C), and guanine (G).

Front

What is the base pairing rule in DNA?

Back

In DNA, adenine pairs with thymine (A-T) and cytosine pairs with guanine (C-G).

Front

What is the process of DNA replication?

Back

DNA replication is the process by which a DNA molecule makes a copy of itself, resulting in two identical DNA molecules.

Front

How many DNA molecules are produced at the end of replication?

Back

At the end of DNA replication, there are two identical DNA molecules.

Front

What is a complementary DNA strand?

Back

A complementary DNA strand is the strand that pairs with a given DNA sequence according to the base pairing rules.

Front

What is the role of DNA polymerase in replication?

Back

DNA polymerase is the enzyme responsible for adding nucleotides to the growing DNA strand during replication.

Front

What is the significance of the double helix structure of DNA?

Back

The double helix structure of DNA allows for the efficient storage of genetic information and the accurate replication of DNA.

Front

What is the function of the sugar in a nucleotide?

Back

The sugar in a nucleotide provides the structural framework for the DNA molecule and connects to the phosphate and base.