BIOB10H3 Lecture 3: LEC03
8 Oct 2015
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Bc of evolution, the basic principles learned from experiments on one type of cell are generally applicable to other cells: apply interspecies stuff bc of this. Prokaryotes -> e. coli -> have dormant strains: most thoroughly studied bacteria -> understanding of dna replication, genetic code, gene expression, and protein synthesis derive from studies of e. coli. Protists -> s. cerevisiae (yeast: simplest eukaryotes -> easily grown from a single cell, used for genetic manipulations similar to bacteria -> usu. haploid. General principles of cell structure and function apply to all eukaryotic cells -> like er. Plants -> arabidopsis thaliana (mouse-ear cress: model for plant mol bio and development, small genome -> plants usually have huge genomes. Easily grown in the lab: studies of arabidopsis have led to the identification of genes involved in plant development. Embryonic origin and lineage of all cells is precisely known.
