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The mean commute time in the metro New York area is 45 minutes with a standard deviation of 15 minutes.
A) According to the central limit theorem, what is the mean of the average commute times for samples of size 50? What is the standard deviation of this "distribution of averages"?
B) What is the probability that a sample of 50 commuters has mean commute time greater than 50 minutes?
Amino acid compositions can be determined by heating a protein in 6 M HCL and running the hydrolysate through an ion-exhange column. If you were going to do an amino acid sequencing experiment, why would you want to get an amino acid composition f..
Both directional and stabilizing selection affect the additive variance in quantitative traits. Given their effects, how much additive genetic variance do we expect to find in traits that affect fitness?
The carbonic anhydrase in proximal tubule epithelial cells are particularly sensitive to inhibition by the medication, "Topamax." What is the step-by-step explanation of how the inhibitory action of how Topamax caused the disturbances in a person'..
Estimate where are proteins produced in the cell? If modified after production, where does this occur and what types of modifications do proteins undergo?
Analyze the DNA of the Phenylalanine hydroxylase gene in patient with phenylketonuria revealed a mutation in protein coding region whose predicted effect would be to replace the amino acid aspartic acid, with histidine.
Inversion or Translocation heterozygotes have difficultyin producing gametes that function properly. Is there a way that an Inversion heterozygote could manufacture functional gametes?
After Drosophila DNA has been treated with a restriction enzyme, the fragments are attached to plasmids and selected as clones in E. coli. By using this "shotgun" technique, David Hogness recovered every DNA sequence of Drosophila in a library.
The -10 and -35 sequences in bacterial promoters are separated by about two turns of the DNA double helix (remember genetics?). How do you think transcription would be affected if the deletion were introduced such that the -35 sequence was moved to -..
You are studying a transport molecule. It appears to bind temporarily to the molecule to be transported. During normal transport, no energy is expended.
Suppose that the cell membrane is permeable to water but not to ions, Explain what will happen to the cell in terms of osmosis. If the membrane were permeable to ions,
Which of the following do NOT perform function in the nucleus? Transcription factor proteins, ribosome, RNA polymerase or DNA polymerase?
Living diatoms contain brownish plastids. If global warming causes blooms of diatoms in the surface waters of Earth's oceans, how might this be harmful to the animals that build coral reefs?
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