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An endemic fish living in freshwater blue hole in the Bahamas, Poecilia bahamania, has two color morphs, a red and blue morph. You have observed that an invasive species of cichlid that was introduced to the blue hole five years before seems to prefer to eat the red morph of the native fish. You even go so far as to conduct an experiment that the cichlid will eat the red Poecilia twice as often as the blue. However, in those five years, the relative frequency of Poecilia has not noticeably changed. What might account for this observation and might natural selection ever cause the population to lose the red morph?
What are Bohr Effect and Haldane Effect? Discuss how these two effects work together in facilitating oxygen and carbon dioxide exchange in tissue and in lungs.
What was the purpose of incubating an unopened plate? What would have been an appropriate label for this plate?
Unlike steroid hormones, signaling molecules that are large and/or hydrophilic cannot pass through the cell's plasma membrane and therefore must bind extracellularly to receptor molecules in the plasma membrane.
Hill buffer is a solution of 0.4 M K2HPO4 made up in 0.08M KCl. We needed 2500 mL for the week. Show your work. a.) How many grams of KCl (FW = 74.551) were needed to make this volume of buffer? b.) How many grams of K2HPO4 (FW = 174.17) were need..
What volume of a stock solution of 200 mM ethylenediaminetetraacetic acid (EDTA), pH 7 will you use to make up 400 mL of a solution containing a final concentration of 5 mM EDTA?
Hydrolysis of of cake mix yields glucose, fructose, glycerol, and amino acids, molecules with hydrocarbon chains and a carboxyl group at the end. Is the cake mix fat free.
What ethical issues might arise when a drug company funds trials of a new drug it has developed to treat a genetic disorder?
What is "Independent Assortment" of chromosomes? Who is associated with this theory? Throughout what phase of Meiosis I does it happen.
If we make a cross of two phenotypically WT zebrafish, and we get following results, what can we say about the genotype of those two WT looking parents from following results,
Gel filtration column was calibrated with blue dextran, its elution volume found to be 17.4 mL. Then, unknown protein and BSA were ran through the same column and eluted in 43 mL and thirty-six mL correspondingly.
explain how you determine the metabolic processes of the organism (oxidizer, fermenter, or neither) in the presence of the glucose substrate.
These items are to be examined under a microscope. Sketch the following given specimen: gametophyte/ sporphyte, Closeup of sporangia.
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