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For each of the mutations below, which mutation is more likely to disrupt the structure of a protein (that is, make a mutant protein that is less stable than the nonmutant protein)? In each case, explain your reasoning.
A. A mutation which changes a Lys (nonmutant protein, called the "wild type" protein ) to a Gln (mutant protein) or one which changes a Leu (wild type protein) to a Gln (mutant protein).
B. A mutation which changes a Phe (wild type protein) to a Gly (mutant protein) or one which changes a Phe (wild type protein) to a Leu (mutant protein).
C. A mutation which changes a Pro (wild type protein) to a Gly (mutant protein) or one which changes a Gly (wild type protein) to a Pro (mutant protein).
In Zea maize, the genes for virescent color, and variable sterility have been mapped. The virescent gene is located 18.3cM from glossy, which is located 13.6cM from variable sterile gene.
Explain why carcinomas are more common than sarcomas? Describe briefly your favourite new term or concept from this class.
In humans the presence of chin and cheek dimples is dominant to absence of dimples, and ability to taste the compound PTC is dominant to the inability to taste the compound.
Glycogen synthase catalyzes glycogen synthesis. determine whether each of the following are associated with an increase or decrease in glycogen synthase activity.
The nutritional data on a cereal box shows that one serving of a dry cereal has 200 kilocalories. If one were to burn one serving of the cereal,
What are the steps in isolating the DNA from strawberries. What are the materials required to isolate DNA.
From a bacteria stock you serially dilute 1/100 two times, then serially dilute 1/10 two times. From this last tube you plate 100 ul, which produces 156 colonies the other day.
Early in the morning, the black caterpillars rest in a tightly packed group on the east-facing surface of the tent. In mid afternoon, the group is found on the tent under surface, each caterpillar individually hanging from the tent by just a few of i..
In this week's experiment, we will examine the technique of random sampling as a tool for the estimation of large populations.
At which level of protein structure are peptide bonds the most important.
A black A/A B? B C? C is crossed with a colourless a/a b/b c/c to give a black F1. The F1 is selfed. What proportion of the F2 individuals is colourless.
Explain why is RNAse added to PCR? Prevent RNA from annealing to the template strand. But what else is it used for
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