BIOL 23000 Study Guide - Midterm Guide: Scanning Electron Microscope, Fluorescence Microscope, Electron Microscope
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R- fluorescence microscopy can be used, for instance, for the detection of proteins, dna sequences, or molecules that have been made fluorescent by binding to antibodies. R- the limit of resolution was brought to ~ 100 times better than light microscope, while magnification was about 100,000 higher. R- it has shown that through the structural based approach two very divergent groups, bacteria and archaea, can be grouped together (as prokaryotes). The tendency nowadays is to describe organisms as part of one of three domains: Name two things that cells have in common with viruses. R- leucine to aspartic acid is a change from non-polar to charged. Leucine to valine is just non-polar to non-polar. Changing to a charged side chain would drastically alter local electrostatics/bonding: you have isolated dna from two different species. Both dna samples are found to have the same concentration of dna. Sample #1 has a (g+c)/(a+t) ratio of 1. 0.