Bio 210 Lab Midterm review

Bio 210 Lab Midterm review - Bio 210 Lab Midterm review...

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Bio 210 Lab Midterm review Natural Selection and Evolution o Importance of genetic variation to natural selection Natural selection = mechanism for evolution Genetic variation causes natural selection o Meaning of Hardy Weinberg equilibrium formula P + Q = 1 (must equal one for it to be true?) P 2 + 2PQ + Q 2 = 1 Total frequency of all alleles for a gene in population is equal to 1 P = dominant Q = recessive o 5 assumptions for H-W equilibrium no natural selection no immigration no genetic drift/gene flow no mutations no sexual selection o Meaning of genotypes and allelic frequencies in terms of populations Genotype = 2 alleles (ex: BB, Bb, bb) Allelic = how many of each individual allele there is o How the bead experiment illustrates selection Verifies the Hardy Weinberg equilibrium Selection pressure Looking at the change through each generation o Importance of volvocine line Simple to complex organism over time in a colony Shows evolution Prokaryotes o Meaning of phylogeny the sequence of events involved in the evolutionary development of a species o Basic differences between 3 domains Archaea Kingdom archaebacteria All prokaryotes Bacteria Kingdom bacteria All prokaryotes Most abundant organisms on Earth Eukarya Kingdom fungi, plantae, Animalia, and protists All eukaryotes o General cell and colony morphological characteristics of bacteria Bacillus (rod) Coccus (spherical) Spirillum (spiral) o How the gram stain works and is related to cell wall structure
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Classifies bacteria based on different structural and chemical compositions of bacterial cell walls Gram positive = thick cell wall, retains purple dye Gram negative = thin cell wall, doesn’t retain purple dye, has outer membrane o What is a sensitivity plate and zone of inhibition indicate
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This note was uploaded on 03/17/2011 for the course BIO 210 taught by Professor Lydeard during the Spring '10 term at American.

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Bio 210 Lab Midterm review - Bio 210 Lab Midterm review...

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