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Question: Use the momentum balance method and derive the flow rate of a Newtonian fluid flowing across a cylindrical tube (with diameter R length L) driven under pressure of \(\Delta\) rate change if the tube diameter decreases by half?
A geneticist crosses a plant with blue flowers to a plant with white flowers. The offspring include plants with dark blue flowers (1/4), light blue flowers (1/2),
Yeast grows as a haploid cell. In the wild type cells in presence of O2, the pH of mitochondrial matrix is 8, however in cells along with this mutant S gene, the pH is 7. Explain all these results.
The endocrime and nervous system are main regulating systems of the body. However, the nervous system has been compared to an airmail delivery system, and endocrime system to the pony express. In brief explain this comparison.
Rarely, hens reverse phenotypic (not chromosomal dew late in life and develop into sprem producing males. If such a male were to be mated to a normal female,what sex ratio will be expected among the offsrping.
A parallel plate flow chamber is used to measure the viscosity of an unknown fluid. With a channel height of 0.1 cm and width of 1 cm, the wall shear stress can reach 3 Pa with flow rate of 8 cm3/s.
Determine the initial osmotic pressure at room temperature of a cell if the only ions present are CaCl2 on either side of the membrane. Suppose the concentrastions for K+ and Cl- from Table 7.2.
How is sex determined in grasshoppers? Can you find out other examples of organisms with a similar system of sex determination.What syndrome is defined by an XXX genotype.
Think about another population of the same flower, but in this case there is another incompletely dominant blue allele in addition to red and white alleles.
Destroying the Trojan horse. Penicillin is hydrolyzed and thereby rendered inactive by penicillinase, an enzyme present in some resistant bacteria.
In horse, black coat colour is influenced by the dominant allele (B) and chestnut coat colour by the recessive colour (b). Trotting gait is due to dominant gene (T), pacing gait to the recessive allele (t). What colour horse would you use to find out..
Frogs are extremely sensitive to acid rain. How might this information be used to investigate your observation about the trees dying in the forest.
Think about a simple spherical model cell that consists of cytoplasm and a plasma membrane.
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