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Serial dilution Q:
From a stock, 1.0 mL of bacteria is transferred to 9 mL of water until you reach a 10^-6 solution. Assume that on your final plate you counted 150 colonies from the 10^-6 solution where you plated 0.1 mL. Work backwards to show the CFU/mL you would expect to find in each step of the serial dilution and include the volumes transferred between each tube. What would the mutation frequency be if you counted 25 colonies from a 10^-2 dilution where you plated 0.1 mL of this culture?
1. the genes for ruby eyes rb tan body t and cut wings ct are all found on the x-chromosome of drosophila melanogaster.
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A male Drosphila melangaster is genotypically e^+/e^-, where e (ebony) is an autosomal gene. Of the four gametes produced by a single meiosis.
draw a food web that includes humans honeybees cows and three plants that are pollinated by bees tomatoes wheat and
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