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100 mL of a 0.1M solution of the tetrapeptide Trp-Arg-Phe-Glu is adjusted to pH = 2.1. The solution is then titrated with 0.1M NaOH to a final pH of 12.5. Sketch the titration curve, labeling the pH and volume axes. Indicate clearly the volume of NaOH needed to reach each relevant pKa value, the isoelectric point (pI) and equivalence point(s). Relevant pKa values are: 2.1, 4.2, 9.5 and 12.5.
q1. for a diploid species imagine one set of 100 demes each with a constant size of 50 individuals and another set of
a) In ELISA washing between steps is critical. Suggest what would happen (i.e. the result) if, due to poor washing:
Identify and explain both incentives and obstacles that can affect the online student's motivation to learn.
What is competent cell? Why can a competent cell take up plasmid DNA? What is a method that some scientists use to make competent cells and briefly describe it.
1) What is the new volume when a 100.0 cm3 container at 120.0 kPa is expanded until the pressure is 60.0 kPa? 2) What is the new volume when a 50.0 cm3 container at standard pressure is expanded is expanded until the new pressure is 25.0 kPa? 3) Wh..
Which of statements concerning the sperm might be true. These data let you to infer that the species belongs to which protist groups.
what symptoms would you expect to see? How would the symptoms be different if the hole was located between the right and left ventricles?
What are ways to enhance a signal response
In fruit flies, the yellow-bodied (y), echinus (ec) and white-eyed (w) mutations are all recessive to their corresponding normal alleles. A homozygous recessive yellow-bodied, echinus, white-eyed female (y ec w / y ec w, the gene order is arbitrar..
Following Chromosomal DNA Movement through Meiosis and What is the ploidy of the DNA at the end of meiosis I? What about at the end of meiosis II
How do humans contribute to the development of resistance to antimicrobial drugs?
In addition to the synthesis of RNAs, ribonucleotides are involved in other critical cellular functions.
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