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In order to study transcriptional regulation and attenuation in the tryptophan operon, the UGG codons for tryptophan in the trp leader mRNA sequence were mutated into UUG codons. Using this altered trp operon, please answer the following questions.
a) Under what conditions would the operon initiate transcription?
b) Under what conditions would the attenuation take place?
c) Under what conditions would transcription continue through to the end of the operon?
Provide 3-examples in which fluid movement down a pressure gradient is a component of healthy functioning of the body.
Calculate the heat necessary to convert 10.0 grams of solid benzene at its melting point to vapor at its boiling point. The specific heat of liquid benzene is 0.580 cal.
Explain the lochia in a C-sec as compared to a vag delivery. Name and define the three words that are commonly used to describe lochia in its various forms.
Discuss in three sentences or less why DNA polymerases alone cannot initiate complementary strand formations.
The restriction enzyme Scs1 cuts at a restriction site that is found only very rarely in dog genomes. One dog, Jimmy, has two restriction sites for this restriction enzyme in his genome. Another dog, Billy, has three restriction sites for this enz..
Henri tested the effects of a blood pressure reducing drug and found that blood pressure dropped significantly in those treated but did not change in an untreated control group. What is a reasonable conclusion from this experiment?
Which region of the brain has changed the most during the course of vertebrate evolution? Why do you think this is so?
List and depict at least three prokaryotic cellular features that could be targeted in this way to inhibit or kill a bacterial pathogen.
How many high-energy triphosphates are formed by substratelevel phosphorylation during each turn of the TCA cycle (consider the TCA cycle reactions only)? How many are formed as the result of oxidative phosphorylation? How many molecules of CO2 ar..
In humans, let's say that having a free earlobe is dominant to having an attached earlobe, and that hairline is an X-linked trait whereby a normal hairline is dominant over a widow's peak hairline. Two parents with free earlobes and normal hairlin..
what is the name for the spores at the end of hyphae.
Consider what you have learned about the telomeres found at the ends of eukaryotic chromosomes and answer the following questions.
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