1. Calculate the pH of a solution which is 0.428 M in oxalic acid and 1.44 M in oxalate. 2. What is the pH of a solution that is 45.5 mM in acetic acid and 1.11 M in acetate? 3. A solution which is 3.19X10 to the -3 M in an acid (HA) and 6.78x10 to the -3 M in its conjugate base (A-) is found to have a pH of 8.65. What i
To convert androsten-16-en-3-ol into androsterone in vitro, what specific series of changes in functional groups would have to be carried out?
If the hemoglobin tetramer had four identical non-interacting binding sites, what relative values would the intrinsic binding constants have?
What will happen to Glucose, Pyruvate and CO2 if cyanide stops the electron transport system?
A mutant strain of E.coli expresses trp operon mRNA but still cannot synthesize trypophan. How could this mutant phenotype result?
A mutant strain of E.coli has constitutive expression of the trp operon. How could this mutant phenotype result? Ideas are explained.
What would be the effect on lac operon expression in the following media that contains a strain of E.Coli? What if this mutant also contained an O^- mutation? a. Glucose b. Lactose c. Glucose + Lactose
By what processes are macromolecules transported in and out of a cell? Ideas are examined to illustrate.
What takes place at an ecological and physiological level during the freezing and thawing process of the wood frog?
For a weak electrolyte that ionizes as: HX --> H+ + X- construct a buffer with a ratio of 5 moles of HX/2.1 moles X-. The reaction is maintained at pH = 8.7. What is the pKa of the acid?
How do you calculate specific activity, total activity, and % radioactivity given the information in the attachment?
With particular emphasis on the biochemistry, discuss the machinery involved in the transcriptional process.
We did a lab with DNA standards. We made one to one solutions of onion DNA that we precipitated and a 4% NaCl soln. We measured the amount of DNA using spectrophotometers. When we boiled the solution before measurement, the NaCl precipitated. This made the solution cloudy and the absorbancy readings inaccurate. I'm wondering i
Double stranded DNA isolated from a bacteriophage has a molecular weight of 2.1x10E8 Da. (1) Using this information, how many amino acids would this DNA encode? (2) How many different proteins could be encoded by this DNA, if the protein molecular weight is 69 kDa? These ideas are depicted.
What are four similarities in the polymeric structure and synthesis of proteins and nucleic acids?