Deoxyribonucleuic Acid

You won't belive how it works before you see it!

Where is it?

DNA is found inside a special area of the cell called the nucleus.

What is DNA?

Deoxyribonucleic Acid, a self-replicating material present in nearly all living organisms as the main constituent of chromosomes. It is the carrier of genetic information.

What is it made of?

DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases.

What is its structure?

DNA is a double helix formed by base pairs attached to a sugar-phosphate backbone.

What does DNA do?

DNA carr­ies all of the information for your physical characteristics, which are essentially determined by proteins.


Heredity is the passing of traits to offspring from its parents. This is the process by which an offspring cell or organism acquires or becomes predisposed to the characteristics of its parent cell or organism.


The double helix is unwound and each strand acts as a template for the next strand.

Protein Production

Most genes contain the information needed to make functional molecules called proteins. The journey from gene to protein is complex and tightly controlled within each cell. It consists of two major steps: transcription and translation. Together, transcription and translation are known as gene expression.

What is RNA?

Ribonucleic acid (RNA) is a polymeric molecule. It is implicated in a varied sort of biological roles in coding, decoding, regulation, and expression of genes.

Types of RNA

Small Nuclear RNA

Small nucleolar


Small Cajal body-specific RNA

Guide RNA

Ribonuclease P

Ribonuclease MRP


Telomerase RNA Comonet

Spliced leader RNA

What does RNA do?

RNAs function in an information carrying and/or processing mode in the cell.
What is DNA and How Does it Work?


Law enforcement officials typically search DNA databases for a profile that matches DNA from a crime scene sample. Partial or familial searching of DNA databases is a new method that allows the searcher to detect profiles that share some aspects of the crime scene DNA when no exact match is found. In states where this type of search is permitted, a partial match may generate new leads through investigation of close relatives of the person whose profile was in the database. All convicted felons and members of the military have been profiled in the U.S. databases for many years now, and increasingly many others are also included (see below). Partial matching effectively broadens the investigator’s castnet to reach close genetic relatives of everyone in the databases. Those family members can then be openly investigated or DNA tested through surreptitious sampling (considered legal because trash is public domain with no associated privacy rights, and thus a discarded coffee cup is fair game).