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Question: Assume you isolate a mutant e.coli strain that is unable to grow without tryptophan supplementation at 37 degrees C but grows normally at 25 degrees C. what basic class of mutant strain is this?
which type of mutation is more likely to yield this phenotype?
a. misense mutation in an enzyme hydrophobic pocket
b. nonsense mutation in an enzyme active site
c. frameshift mutation early in the ORF
Why?
Question: Which one inhibits protein synthesis by irreveribly binding to the prokaryotic ribosome, and which one deactivates enzymes (two answers)?
Discover the signs and symptoms associated with acute appendicitis. Why is this condition potentially dangerous to the patient. Occurs when the segment of chromosomes breaks off and becomes reattached to another chromosome.
Discuss the similarities and differences between fungi and protists. How do both of these kingdoms differ from the kingdom Eubacteria?
find the titer of B-D-galactosidase using the enzyme-linked immunosorbent assay.
He hopes this will slow the evolutionary development of BT resistant insects. Which seed variety must he use the 10 percent of his field that is not planted with BT 123 seeds.
Martha is maintaining her current weight by eating 2,500 kcalories per day. To lose 1 pound of fat per week, she would have to decrease her intake to how several kcalories per day. Considering the albedo of various surfaces how might temperatures var..
Discuss how many different gametes are formed in a test cross when the cross examines one gene, two genes and three genes?
It has been established that incremental changes led to the development of a human eye. Closely examine the stages of development as seen in slide thirty-one of the Changes lecture.
Oops! You were cleaning out the aquariums in the biology lab and you accidentally placed the saltwater fish in the freshwater tank. What will happen to the cells of these fish?why proper hydration important for multicellular organisms.
In a study of intraspecific aggression, an experimenter finds that 16 out of 23 animals tested in species A exhibit aggression, while only 6 of 25 are aggressive in species B.
How would you answer to a person who argued that there is nothing to worry about because natural systems, through natural succession, will heal the wounds of human activities and restore the balance of nature.
Suppose You want to add PMA to 15mL of HL-60 cells so that you have a concentration of 5nM. Your stock solution is 1uM. What is the volume of the stock solution you require?
What is the function of science and technology in society. If you are in an airplane encountering turbulence and you start feeling sick to your stomach, would closing your eyes help and why.
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