BIOLOGY 2EE3 Lecture Notes - Lecture 2: Phospholipid, Human Microbiota, Central Dogma Of Molecular Biology
4 May 2017
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Document Summary
Archaea differ from bacteria in a number of ways. Not considered alive bc they are not capable of autonomous replication in the absence of any host. There are viruses that affect all three domains of life. Bacteriophages e. coli virus affect bacteria - latch on and inject their dna. Show genetic variation - allowing the organisms to evolve. Microorganisms show genetic variation - if you have selection, the organisms will evolve to different forms. Rna is the same in bacteria as it is in us. An organism would require an elemental composition similar to what is present. Elemental comp of proteins - carbon, hydrogen, nitrogen, sulfur sometimes. If you want an organism to grow in a certain media - give it an environment that is similar to what it is - ie add nitrogen, oxygen, hydrogen. Deoxyribose sugar, phosphate backbone, oxygen and nitrogen.
