DNA History and Structure

Front

What is DNA?

Back

DNA (Deoxyribonucleic Acid) is the molecule that carries the genetic instructions for life.

Front

What are the four nitrogen bases in DNA?

Back

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

Front

What is the complementary base pairing rule in DNA?

Back

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

Front

What sugar is found in DNA?

Back

The sugar found in DNA is deoxyribose.

Front

Who were Watson and Crick?

Back

James Watson and Francis Crick were scientists who built the first accurate model of DNA.

Front

What is the structure of DNA?

Back

DNA has a double helix structure, resembling a twisted ladder.

Front

What is a nucleotide?

Back

A nucleotide is the basic building block of DNA, consisting of a nitrogen base, a sugar, and a phosphate group.

Front

What is the function of DNA?

Back

DNA stores and transmits genetic information used for the growth, development, and functioning of living organisms.

Front

What is a gene?

Back

A gene is a segment of DNA that contains the instructions for making a specific protein.

Front

What is replication in DNA?

Back

Replication is the process by which DNA makes a copy of itself before cell division.