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Acetylcholine binds to a GPCR on heart muscle, making the heart beat more slowly. The activated receptor stimulates a G protein, which opens a K+ channel in the plasma membrane. Would the following enhance or diminish the effect of Ach?
(a) addition of a high concentration of a non-hydrolyzable analog of GTP(b) mutations in the acetylcholine receptor that weaken the interaction between the receptor and the G protein(c) mutations in the acetylcholine receptor that weaken the interaction between the receptor and acetylcholine(d) addition of a drug that prevents the ? subunit from exchanging GDP for GTP
The membrane vesicles are next washed, the membranes solubilized and the proteins denatured and analyzed by SDS gel electrophoresis and Western blotting using polyclonal antibodies against glycophorin A, an erythrocyte plasma membrane protein.
Through writing Henderson hasselback equation describe how pH is equal to pkA when exactly one half of lactic acid is dissociated into H+ and A- ions through titrating with 0.5M equivalents of NAOH.
Unsaturated fatty acids are often classified according to the number of carbon atoms between the terminal methyl carbon (the omega carbon) and the closest double bond to the methyl end of the chain.
So far while surgery was performed on his neck, the surgeon might not find the parathyroid glands at all. Where should the surgeon look next to find out the tumorous parathyroid gland.
A lion is heterozygous at two linked autosomal loci. The alleles are in coupling phase. If the two genes are 30 cM apart what gamete types can be produced.
A friend claims that the faster you read, more you remember. Use your information of effortful processing and effective encoding strategies to refute your friend's claim.
The Twenty mL of water is added to the Erlenmeyer flask is to previously boiled, deionized water. Since water does absorb CO2 from atmosphere and since CO2 dissolved in water causes it to be slightly acidic,
What is cation exchange and how (or why) does this happen? Why does a change in pH affect the exchange.
What biological structure does the winding stairs in Jerome's apartment resemble and what components are represented by the "rails"?
Assume you are a scientist at a genetic testing company. Describe how you would take one approach to testing relatedness between two individuals,
Explain which strategy you think would lead to more rapid genetically-based gains in the rate at which chickens grow? (assume the starting populations for both strategies have the same genetic composition).
Explain the what happen from a physiological standpoint to the respiratory system when smoke is inhaled and exhaled.
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