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DNA Polymerase can distinguish between dNTPs and rNTPs because of discriminator amino acids in the enzyme's nucleotide-binding pocket. These amino acids occupy the space where the 2'OH group of an incoming rNTP would need to reside in order to properly position the substrates for catalysis. These discriminator amino acids usually have large R groups, which sterically exclude the ribose 2'OH. If you experimentally mutate/change the discriminator amino acids to glycines, predict the effect that this change might have on DNA polymerase.
Identify several bacteria and fungi that could cause this disease. Are these organisms part of the microbiota (normal flora)?
In Parkinson's disease, which part of the brain shows depigmentation.
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.
MC4100 mutS cells are spread onto a single LA/λvir plateand incubated overnight at 37° C. The next day there aremultiple bacterial colonies growing on the plate. Decide whethereach of the following (A-C) could account for the bacterialresistance to λ..
How do you think PCR could be used to determine if a public water supply is contaminated with a hazardous bacteria? What would be necessary to do this analysis?
what is cytosenescene ltbrgt
The client tells nurse that he does not understand what that means. How would nurse explain this in terms the client would understand.
How would you argue that there is an intimate connection between people and nature?
Make an experiment in which you will test the effect of an acidic fluid on enzymatic activity. To complete this project, it may be useful for you to review the Scientific Method Tutorial.
A hormone such as epinephrine binds to the same receptors but produces different responses in the liver, skeletal muscle, and cardiac muscle. How can epinephrine produce three different responses?
A mutation in a gene disrupts paracrine signaling from a subset of cells in the pancreas. Which of the following mutant phenotypes is consistent with the information above?
What kind of environment or factors lead to the development of the trait of "wanting to survive and reproduce"?
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