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a) Explain why is 5% (w/v) Sucrose solution hypotonic to the water plant cell, however a 5% (w/v) NaCI solution is hypertonic? Shouldn't the tonicity be the same?
b) Describe how the different components found within blood work together to offer a unified function for the body.
Utilize the words mesoglea, epidermis, gastrodermis, polyp, medusa, and gastrovascular cavity to describe the differences between the two forms of phylum cnidaria.
If the mutation is in mitochrondrial DNA, will the four haploid cells probably be all Pyr-, all Pyr+, or a combination? What if the mutation is in nuclear DNA. Why is mitochondrial function critical for growing on pyruvate.
What is a main property of DNase that makes it useful for assessing whether chromatin is in a closed (tightly condensed) or open (loosely packed) configuration.
While walking throughout a forest you notice that someone has carved his or her initials into the bark of a tree. The initials are exactly 1.5 meters from the ground. How far from grounds will the initials be next year and the year after that? Why? E..
If some cell-surface receptors, including cytokine receptors and notch, can rapidly signal to the nucleus by activating latent transcription regulators at the plasma membrane, why do most cell-surface receptors use long, indirect signalling cascades ..
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.
The idea is that this arrangement will allow animals and plants to migrate between refuges. Why would such migration be significant. Examine the F1 offspring from this cross.
Beaker A contains 25 percent salt solution. A differentially permeable bag (permeable to water not salt) containing 50 percent salt solution is allowed to float on top of the solution in Beaker A. What will occur.
Black coat of animal is dominant; white is the alternative recessive. While true-breeding black is crossed to true-breeding white, what is the possibility that a black F2 is heterozygous.
What is the possibility that differences this great between observed and expected values would happen by chance. Two genes organize in corn snakes as follows: O-B is brown snakes, O-bb are orange, oo bb are albino. An orange snake was mated to a blac..
Eastern tent caterpillars live in sizable groups in silk nests, or tents, which they construct in cherry trees. They are among the first insects to become active in the spring, emerging very early in the season-a time while daily temperature fluctuat..
What may have been the cause of this disease that generally strikes a person much older than Hank. Flask A contains yeast cells in glucose-minimal salts broth incubated at 30 C with aeration. Flask B contains yeast with cells in glucose-minimal salts..
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