GE In-Depth GE In-Depth

GE Basics
Locating Genetic Information

Timeline of GE

Recombinant DNA:
How Genes Are Transferred


Recombinant DNA: Example Using Insulin

How To Make Identical Genomes



 Locating Genetic Information


Genetic information is organized into a chromosome. A chromosome is a tightly bundled thread of genetic information stored in the nucleus of a cell. The genetic information is organized in the form of genes attached to a protein core. (More on genes later.)

Most organisms have several chromosomes. There are two types of chromosomes: autosomes and sex-linked chromosomes. There are two types of chromosomes because some genetic information is linked to the sex of the organism. Sex-linked traits, like color blindness and gender, are stored in sex-linked chromosomes. All other genetic information is stored in autosomes.

Each species has its own number of chromosomes. Humans have 46 chromosomes.

Next, find out how a chromosome is arranged into packets of genetic information.

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Explore More: Genetic Engineering
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