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Q1. Consider a cell that can usually grow either with or without oxygen. You also have a mutated strain of this similar cell type. In the mutated strain, citrate synthetase is present in a mutated form. The enzyme at rest converts reactant normally to product but no allosteric molecules can bind the allosteric site. In the absence of oxygen, will mutated cell make less more or the same ATP than the normal cell? How about in the occurrence of oxygen?
Q2. When examining geology of a region for potential useable aquifers, what characteristics or factors would you consider? Also, taking into account certain natural and human factors, which areas would you avoid?
Calculate how the permeability of each is altered when the pH is reduced to 1.0, a value typical of the stomach.How to demolish the function of this protein.
What hormone do the adrenal glands produce. An uncold-worked brass specimen of average grain size 0.008 mm has yield strength of 170 MPa. Estimate the yield strength of this alloy (in MPa) after it has been heated to 600°C for 1260 s, if it is known ..
A woman from the family with normal cholesterol marries a man with no LDL receptors, and all their children have cholesterol levels twice the normal of the mother.
Male frogs give calls that attract female frogs to approach and mate. Researchers examined mating calls of closely related tree frogs in South America. What outcomes be able to occur where the ranges of two species overlap.
They isolated bacterium in a pure culture and demonstrated that experimental healthy animals injected with this culture became sick. What other test do researchers require to perform to be absolutely sure that the bacterium is responsible for the dis..
Without oxygen, cellular respiration grinds to a standstill, although glycolysis can continue to make some ATP anaerobically for a short time. While oxygen runs out, why does electron transport stop? Why do you thing the Krebs cycle stops.
Describe the significance of historical achievements in proving the role of microorganisms in human health and disease and maintaining health of the environment. Be sure to explain the current classification of microorganisms.
Assume a level area of granite rock was the parent material in both cases; describe in general terms how you would expect two soil profiles to differ, one in warm, semiarid grassland and the other in a cool, humid pine forest.
It is frequently when the environment changes in some way that is unfavourable to an existing population that the organisms begin to reproduce sexually. Explain the importance of this switch from asexual to sexual reproduction.
When a tropical moth is touched on the thorax it lifts its forewings up abruptly, exposing its brightly coloured hind-wings. What causes the moth to behave this way? What significance can we attach to the fact that the verbal ability scores of ado..
What will be appearance of the offspring of a cross of the F1 peaches back to that smooth,oval glanded parent. How several diploid Drosophila cells would be needed to have 1 picomole of each allele.
Which distributed database process is best under these circumstances. How is the replication of the viral genome of retroviruses unique among the viruses? Why was it before believed that only DNA viruses could cause cancer.
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