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Think about these two facts: a) The alpha-subunit of the G-protein trimer has an intrinsic GTPase activity, which is important in terminating the action of G-protein coupled systems. b) The CFTR is activated by cAMP. Here’s the question: If you introduced a toxin into the intestinal cell that blocks the intrinsic GTPase activity of a stimulatory G-protein (Gs), what would be the most significant effect on intestinal function? Briefly explain the mechanism underlying your answer, including the most important steps in the signal transduction pathway.
Which magnification was most helpful in making this determination? What optical principles are involved here and describe the role of each.
Which of the statements best describes the shape of its teeth? How many teeth does it have in the premaxilla.
On the coding strand above, indicate where you would expect FRP to bind to the DNA. In one sentence, describe why the decision makes sense.
Compute the change in energy of an atom that emits a photon of wavelength 2.21 meters. (Planck's constant is 6.626 x 10-34 joule seconds; the speed of light is 2.998 x 108 m/s)
Suppose that a dihybrid cross is made in which the gene loci are autosomal, independently assorting, and incompletely dominant.
A scientist has discovered a new cell. illustrate, in detail, ALL the ways the scientist could decide if the cell comes from a plant or an animal. How several of these result in the release of oxygen into the atmosphere?
You are the owner of a company that sells cleaning products. The people in Research have two new products for you to review. The first is a kind of hand soap that they say will cut greasebecause "it is made from a lipidand like dissolves like."comp..
I in brief describe how a mutation might alter gene function (at the molecular level) if it fell into the following categories. As an example, a neomorphic mutation could result from expressing a gene in a novel location.
Select the optimal temperature for enzyme function observed. Note you will have to create your own graph or log in the milliliters of gas bubbles produced on your own to answer this question.
Explain how cell division and the sexual reproduction help in genetic variability of organism. How do both the meiosis and sexual reproduction (fertilization) generate offspring which differ genetically from parents?
An inversion heterozygote possesses a normal chromosome and one with an inversion. The gene orders in these 2 chromosomes are shown below- Normal 1 2 3 4 5 6 7 8 9 10 o.
How various kilograms of diatoms are needed to build 1 metric ton (1000kg) of blue whale. Give details how filter feeding by blue whales enables them to grow so large.
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