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What does the Fluid Mosaic Model say about the structure and composition of a cell's membrane? Why would water molecules or a metabolic compound like Acetyl-CoA, need a transport protein to move rapidly and in large quantities across a membrane? Your response should be a minimum of 250 words and properly cite any reference used.
Discuss how do cells sense chemoattractants or chemorepllents? Be specific about the molecules involved. Is the cytoskeleton remodeled during cytokinesis?
Predict how a mutation that knocks out the glnB gene of E. coli would affect the expression and activity of glutamine synthetase and what affect this gene knockout would have on the cell.
Suppose if we had a population of 1000 individuals, how many would be feebleminded? How many would be carriers for feeblemindedness? Is mitochondrial DNA testing based on valid scientific theory?
In what two different ways do bacteria "sense" the amount of trp in the environment? Describe both mechanisms in detail. What are two hypotheses for the role of RNA silencing.
The recipe for 10x TBE buffer is 890 mM Tris, 890 mM boric acid, 20 mM EDTA. What is the concentration of 1x TBE buffer?
Describe the structural differences of the contractile units in skeletal, cardiac, and smooth muscle. Why would calcium channel blocking hypertension drug have an effect on blood vessels
there are five types of gene duplication including partial/internal, complete gene duplucation, partical chromosomal duplication, complete chromosomal, and polyploidy/genome duplication. Which one of these does NOT require different amounts of gen..
A volume of aqueous hydrochloric acid containing 0.500 mol of HCl and 0.100 mol of magnesium metal were combined and reacted to completion. How many liters of hydrogen gas were produced under STP conditions?
A mutaton in the gene W causes a post-pubertal onset of functional defect in Leydig cells. Determine which of the following profiles is associated with a male carrying this mutation in the gene W, at thirty years of age?
In plants, the mitochondrial, chloroplasts and nuclear genomes all contain ribosomal RNA genes. Would you expect the ribosomal RNA genes of a plant's mitochondria to be more like those of its chloroplasts
Why water is known as polar solvent? How is hydrogen bonding involved in cohesive attraction of water molecules? Water molecules also attract other sorts of molecules, particulary ions.Why is this.
Explain the advantages of Nitrogen fixing plants to the humans and its role within the ecosystem in detail. Browse the Internet and select a way (other than giving the oxygen) that plants are useful to the humans.
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