Biology 1002B Lecture Notes - Lecture 1: Noncoding Dna, Chlamydomonas, Genome Size
16 Aug 2017
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Cycle 1 lecture 1: chlamydomonas, a model system. Chloroplast convert light energy to chemical energy. Eyespot light sensitive region in chloroplast (unrelated to photosynthesis) links light with flagella movement. Characteristics of chlamydomonas that make it a useful model system. Small (grow in mass quantities rapidly and easily: relatively large cell so things that happen in it can be observed (10x in size than bacteria) Haploid in lab so mutations can be easily observed (no dominance) Uses light for both energy & information. Prokaryotic and eukaryotic genes in the same cell: shares many characteristics in common w/ many different taxa so is useful in being model for many different organisms. Chlamydomonas is fairly close to the base of the tree. More closely related to plants than animals. Doesn"t share many common traits with plants other than ability to photosynthesize. Zygotes exist to serve as a container for recombination and meiosis.
