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Question: Traditionally, it was thought that the nucleus was the control center of the cell. Recent discoveries though, indicate that the nucleus in eukaryotes is merely a repository of genetic data, and that the cell membrane controls the expression of genes by serving as an interface with the external environment. Discuss the the evidence that supports the hypothesis of cell membrane control.
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..
William Astbury discovered that the x-ray diffraction pattern of wool demonstrate a repeating structural unit spaced about 5.2 Å along the length of the wool fiber.
A forty-four year old man is recovering from third degree burns over 50 percent of his body surface area. His serum potassium level is low (2.9 mEq/L). Heexhibits postural hypotension and skeletal muscle weakness.
Explain why proteins are superior to both RNA and DNA for structural and enzymatic function?
Assume you are creating a solution and the recipe calls for 25 ml of 10 percent glucose. How much of the 3M glucose stock would your need to add to so that you are adding the same molar amount of glucose?
In 1958 federal law restricted the movement of soil and plants from areas where fire ants were established. Why was this law ineffective in stopping the spread of fire ant colonies.
find out the major pathway of glycine degradation. you find that the amino acid serine contains the most radioactivity, and that both the Calpha and Cbeta carbons of the serine residue are labeled with 13C. Explain these observations.
Rifamycin and actinomycin D are two antibiotics derived from bacterium Streptomyces. Rifamycin binds to b subunit of E. coli RNA polymerase and interferes with formation of the first phosphodiester bond in the RNA chain.
Wellness is best described as one dimension, dynamic process, unrelated to one's environment, or static process.
Create an experiment in which you will test the effect of an acidic fluid on enzymatic activity. To complete this assignment, it may be useful for you to review the Scientific Method Tutorial.
For a particular assay, you need cells at a concentration of 300 cells per ml. In your flask of cells growing you counted a sample using a hemacytometer.
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..
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