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calculate the final concentration of each of the components in the reaction mixture described in the folliwing experiment:
The enzyme tyrosinase is found in large concentrations in plant tissues. This enzyme is responsible for the browning of peeled potatoes and bruised fruits. In an assay to determine the activity of the tyrosinase in a potato extract, the following reaction mixture was prepared:
1ml of potato extract, 2ml of 5mM dopa (3,4-dihydroxyphenyalanine), 0.5ml of 20mM citrate buffer, 0.5ml of 1% hydroquinone and 2ml distilled water.
What are the final concentrations of dopa, citrate buffer, and hydroquinone in the reaction mixture?
find out the major pathway of glycine degradation. you find that the amino acid serine contains the most radioactivity, and that both the Calpha and Cbeta carbons of the serine residue are labeled with 13C. Explain these observations.
Suppose you were given ten ml of milk. You added 0.5 ml of the milk to 9.5 ml of sterile water. After mixing, one ml of the diluted milk was added to 99 ml of sterile water.
In squash, disc shaped fruit is dependent on dominant gene D and elongated fruit on recessive allele d. Yellow color is controlled by dominant gene R and green color by recessive allele r. Draw a cross between the homozygous squash fruits and summ..
Which statement correctly relates to DNA and RNA.
Assume you are researching flower genetics. You find a plant with a blue flower and another with a white flower.When you mate them, they have many offspring, half the offspring have blue flowers and half have white flowers. Is it possible to do on..
Which of the recombination process (transformation, conjugation, and transduction) would be most likely to occur in the natural environment? What factors would encourage or discourage your choice from taking?
A three-carbon molecule is produced from glycolysis undergoes changes before it enters the TCA cycle. What are those changes? Also Name the carrier molecule that escorts the product to the enzyme citrate synthase in the TCA.
A certain gene consists of 450 nucleotide pairs.How various codons make the 150 residues.
What are the three central elements of chemiosmotic theory for coupling oxidation to phosphorylation in mitochondria?
Genes A, B, and C are linked on a chromosome and found in the order A-B-C. Genes A and B recombine with a frequency of 8%, and genes B and Crecombine at a frequency of 24%.
The formation of surface blebs caused by ischemia reflects in part plasma membrane injury, but also a sign of cytoplasmic injury.
What is the advantage of having a cerebrum that is highly convulated? What term is used to indicate its grooves? Its outward folds? What groove divides the cerebrum into two hemispheres? What divides the parietal from the frontal lobe? The parietal f..
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