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Q. Assume that pesticide resistance in beetles is a quantitative trait that can be measured as the number of days a beetle survives after exposure to the pesticide. The least resistant beetles die within one day, while the most resistant beetles can live for 12 days after exposure.
a) Illustrate an experiment that you could use to measure how this population of beetles responds to the selection that occurs when the population is exposed to the pesticide. Include details about how you would control non-genetic sources of variation.
b) Sketch a graph showing the response to selection if the heritability, h2, of pesticide resistance is 0.2.
c) Sketch another graph showing the response to selection if the heritability, h2, of pesticide resistance is 0.8.
Both the mitochondrion and the chloroplast use an electron transport system to generate ATP. How do these processes differ between the two organelles?
Suggest a suitable buffer range for each of the following substances.
An operon with one regulatory region and three protein?coding genes will have how many promoters? Related: Explain how bacteria can make one mRNA molecule that contains the code for several proteins.
Activation of metabotropic glutamate receptors in neurons is often coupled to the activation of phospolipase C PLC.
Assume you are given a primer with a concentration of 1.4 mg/ml, RNA concentration of 0.8 mg/ml, 1M MgCl2, 10mM dNTP mix, 10x buffer, 10 units/ul of reverse transcriptase.
The patient was discharged from the hospital 10 days later. As the discharging nurse, list three medical issues you would advise this patient to attend to. List the issues in the order of importance: from most to least.
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Which group of people is lactose intolerant?
Result of mitosis is that daughter cells end up with the similar number of the chromosomes just as the parent cell. This is obtained through the chromosome duplication followed by the cell division.
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List the two kinds of macromolecules that have been partially digested by the time acid chim moves into the intestine. Where did this digestion take place, and what enzymes are involved.
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