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Compared to impact craters on other moons, young impact craters on Europa (including the Pwyll impact crater) show a distinct absence of high crater walls, or any significant depression towards the center. What does this suggest about Europa's icy surface?
A) It suggests that Europa's ice crust must be extremely thick.
B) It suggests that Europa's ice crust must consist of many small "ice plates".
C) It suggests that these impacts were of "dirty snowball"-type comets.
D) It suggests that these impacts likely punctured Europa's ice crust.
E) It suggests that these impacts occurred within deep "snow drifts" on Europa's surface.
Assume y ou are analyzing a dominant allele in fruit flies that mutates to a recessive allele at the relatively high rate of 10 -6 per generation.
Suppose that you are given a mixture of proteins that you examine by standard 2-D electrophoresis, with the following results for isoelectric points and apparent molecular weights.
You have two flies that have the following traits. The female fly is dominant homozygous for red eyes and she has a rate immune deficiency for which she is recessive homozygous, having one allele on each X-chromosome.
Cross a wildtype female with a yellow bodied male to generate an f1 offspring generation. Which allele is domonant and which is recessive. Justify your responce using your results.
Think about a cross between two strains of peas that differ at all seven of the traits that Mendel used (a heptahybrid cross)? Among the F2 offsprings:
Assume you have been breeding roaches in your dorm and are trying to increase the speed in your roach population. You examine speed by timing.
Several traits are affected by the environment, but also have a genetic component. How can we partition the sources of variation? Write a formula for this.
A new drug targets renal function through changing ion transport from the filtrate to the interstitial fluid. This particular medicine blocks active transport of sodium in the nephrons.
If you were to develop a Punnett square for the trihybrid cross GgRrTt x GgRrTt, how many times would you expect to see the genotype in question in the punnett square and find the probability of GGRrTT in the progeny of a F1 cross?
Cystic fibrosis is a genetic disease that leads to formation of thickened mucus in the lungs, pancrease, and other organs. In the lungs, the mucus impeads airflow and the removal of particulates leading to infection.
There are four main categories of molecules of life. Complete the table given by indicating, the name of each of the four categories of the molecules of life
Calculate the maximum [glucose]in/[glucose]out ratio that can be achieved by the plasma membrane Na+-Glucose symporter of an epithelial cell when the concentration of Na+ inside the cell is 12 mM.
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