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PROCHAINE ANIMATION SCIENTIFIQUE
Le Département organise le
Mercredi 20 Février 2013 une Journée Thématique sur le thème
“Beyond genomics: methylation and other non conventional regulation in bacteria”Mercredi 20 février 2013 – Auditorium BIME bât J F Jacob
The Cells That Changed The Earth
Some of the oldest cells on Earth are single-cell organisms called bacteria. Fossil records indicate that mounds of bacteria once covered young Earth. Some began making their own food using carbon dioxide in the atmosphere and energy they harvested from the sun. This process (called photosynthesis) produced enough oxygen to change Earth’s atmosphere. Soon afterward, new oxygen-breathing life forms came onto the scene. With a population of increasingly diverse bacterial life, the stage was set for some amazing things to happen. Bacteria are single-celled organisms with a circular DNA molecule and no organelles.