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Under certain conditions the side chains ( R- groups) of asparitic acid and lysine can form an ionic bond with one another the pKa for ionizing groups on these side chains is 3.86 for aparitic acid and 10.53 for lysine A) draw the dominante structure of each of these amino acid side chainsat pH 3. indicate whether an ionic bond can form between these amino acid side chains at pH 3 B) draw the dominant structure of each of these amino acid side chains at pH8.
Suppose that Mendel looked simultaneously at four traits of his pea plants. If he crossed a homozygous dominant plant with a homozygous recessive plant.
Regarding fetal development, what are the foramen ovale and the ductus arteriousus, and why do they exist? Name one similarity and one difference between these anatomical features.
Two genes in chromosome 7 of corn are identified by the recessive alleles gl (glossy), determining glossy leaves, and ra (ramosa), determining branching of ears. When a plant heterozygous for each of these alleles was crossed with a homozygous rec..
Explain why do positive inotropic agents help in the treatment of heart failure and also explain why are patients with chronic hypertension prone to developing heart failure?
We are told that every surface we touch is teeming with bacterial cells, and bacteria are found in the pools we swim in, water we wash with, and on the hands of friends. Why don't we always have problems with bacterial infections all over our bodies.
If the resting membrane potential of a cell is -70mV and the thickness of the lipid bilayer is 4.5nm, what is the strength of the electric field applied across the membrane in V/cm ?
G-protein-linked receptors activate G proteins by reducing the strength of GDP binding. This results in rapid dissociation of abound GDP, which is then replaced by GTP, which is present in the cytosol in much higher concentrations than GDP.
Some human pathogenic bacteria are resistant to most antibiotics. How would you prove a bacterium is resistant to antibiotics using laboratory culture techniques?
Pick one species of living organism each (one plant and animal that you like), and describe their habitat and the range of conditions in which they have adapted to live.
Explain how Mendel's scientific approach enabled his genetic experiments to be successful and describe Mendel's law of segregation and explain its' mechanism based on molecular biology.
How do these duplications arise and what do they propose in terms of mechanisms of transposition. Could you help to understand FEV1/FVC and how the expected percentage of this figure relates to respiratory problems.
Illustrate one experiment that shows that shh is the critical molecule produced by the inducing tissue referred to in (a). what is the evidence that this tissue regulates the ventral pattern of the neural tube (even before this tissue was known to pr..
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