Teacher resources and professional development across the curriculum

Teacher professional development and classroom resources across the curriculum

Monthly Update sign up
Mailing List signup
Interactives -- DNA

Human Genome : Genome Size

The size of a genome does not necessarily have anything to do with the complexity of the organism. In fact, the organism with the largest known genome is a microscopic single-celled organism called Amoeba dubia, whose genome is about 200 times larger than ours.

The lowly onion has a genome that is 20 times the size of the human genome.

Our genome does reveal information about evolution and how closely certain organisms are related. One way to study this is to compare our genes to those of other organisms. Such comparisons show that we are much more similar to other organisms than many people might think. The chart below shows how similar we are to some commonly studied organisms.


Home | Catalog | About Us | Search | Contact Us | Site Map |

© Annenberg Foundation 2016. All rights reserved. Legal Policy