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O-acetyl serine has the following structure:
O O II IIC---C---O---C---C---C---OH I NH2 It can can be hydrolyzed to acetic acid and serine by O-acetyl serine acetylase.
A reactio mixture containing 20 mM O-acetly serine, 50 mM NaCl, 50 mM HEPES buffer (pH 7.6), and O-acetyl serine is incubated at 37 C until the O-acetyl serine is completely hydrolyzed. What is the pH of the mixture at the end of the reaction? (For O-acetyl serine, pKa1= 1.9, pKa2= 8.6; for serine, pKa1= 2.2, pKa2= 9.2; for acetic acid pKa1= 4.76; for HEPES, pKa1=3, pKa2= 7.6)
Discuss and explain how do girls and boys differ in bullying behavior? What are some of the emotional consequences of being bullied?
Discuss the most important SIMILARITIES & DIFFERENCES between DNA repication and RNA trnascreption?
Determine the frequency of the heterozygous genotype if the homozygous genotype frequencies are .0025 (BB), 0.9025 (bb)?
Give an example of an area of research and science which requires a code of ethics when suggesting your modifications to the scientific method.
Animals obtain energy during a sequence of chemical reaction in which sugar (C6H12O6) and oxygen gas (O2) are reactants. This process produces water (H2O) and carbon dioxide (CO2) as waste products. How might you use radioactive isotope to find out w..
Determine the possible DNA sequences that produced the four amino acids in the molecules
Think about the following hypothetical scheme of determination of coat color in a mammal. Gene A controls the conversion of a white pigment P 0 into a gray pigment P 1 ;
Illustrate the texture and arrangement of the lungs of the cat. If you were asked to create a karyotype from the chromosome spreads you made from HeLa cells, list materials you could use and describe how you would create the karyotype.
How can the photosynthesis process be enhanced to fix more CO2 than normal and plant productivity could be increased.
Select appropriate symbols for the alleles of the height and flower colour genes. List phenotypes and predicted ratios for the F2 generation.
Codons with U or C as the second nucleotide, for example, tend to specify hydrophobic amino acids. Can you recommend a possible explanation for this phenomenon in terms of the early evolution of the protein synthesis machinery?
Start by observing the living species around you. Select two non-human species that interact with each other,such as bees and flowers,or predetor and prey species or two species that compete.
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