BIOS 111 Lecture Notes - Lecture 1: Molecular Clock, Archaea, Bacteria

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8 Feb 2017
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BIOS 111 Lecture 1 (1/9/17)
This class will focus on bacteria, fungi, viruses, and prions.
Bacteria:
Most bacteria are harmless and many are essential. Only about 1% are pathogenic.
The world functions on essential bacteria.
In this class, we will assume bacteria are everywhere.
Some bacteria (sporeformers) can survive thousands/millions of years.
Bacteria grow wherever there is water, including over the boiling point (-12°C to
110°C) and at atmospheric pressure of up to 1200 atm.
The human body has more bacterial cells than human cells.
Life Taxonomy:
Prokaryotes do NOT have nuclei
Viruses are NOT alive
Viruses do not grow or replicate unless they get into/invade a living cell, where
they can then replicate.
Archaea have no pathogens
Eukaryote
Prokaryote
Archaebacteria/Archa
Eubacteria
Mycoplas
Gram-
Gram-
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