DNA Structure

Front

What is the basic unit of DNA?

Back

Nucleotide

Front

What are the four nitrogenous bases in DNA?

Back

Adenine (A), Thymine (T), Cytosine (C), Guanine (G)

Front

What is the shape of DNA?

Back

Double helix (twisted ladder)

Front

According to Chargaff's rule, which base pairs with Adenine?

Back

Thymine (T)

Front

According to Chargaff's rule, which base pairs with Cytosine?

Back

Guanine (G)

Front

What are the components of a nucleotide?

Back

A phosphate group, a sugar (deoxyribose), and a nitrogenous base.

Front

What type of bond holds the two strands of DNA together?

Back

Hydrogen bonds between complementary nitrogenous bases.

Front

What is the function of DNA?

Back

To store and transmit genetic information.

Front

What is the process of DNA replication?

Back

The process by which DNA makes a copy of itself before cell division.

Front

What is the role of DNA polymerase?

Back

An enzyme that synthesizes new DNA strands by adding nucleotides.