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When the ends of right handed doble-stranded, linear DNA of 83base pairs and 10.4 base pair/turn corresponding to B-DNA,were jointed together to form double-stranded circular DNA, the writhe(W) was zero. When the number of turns in DNA wa reduced by umwinding the DNA by 2 turns, and the ends joined together, strain was relieved by supercoiling. Calculate the L, T, and W fo ther resulting supercoiled circular DNA (Show all wor), and calculate the superhelical density,α.
Analyze the DNA of the Phenylalanine hydroxylase gene in patient with phenylketonuria revealed a mutation in protein coding region whose predicted effect would be to replace the amino acid aspartic acid, with histidine.
Each cell of the human body contains 46 chromosomes. a. How many double-stranded DNA molecules does this statement represent? b. How many different types of DNA molecules does it represent?
although energy can be neither created nor destroyed, it can be transformed. What are some examples of energy transformation? With each transformation or energy transfer, what happens to energy?
Eight year old flown into emergency center from rural hospital. He was helpping his father out on a farm. The sketchy history obtained was that the child developed nausea and vomiting.
which of the following would you expect to find in normal urine?
What are two cancers that occur predominantly in children(less than 13 years of age), and why is it thought that these cancers occur early in life?
q1. an angiocardiogram was performed on the infant and it was found that he had a patent ductus arteriosus. examine the
Intravenous injections are commonly performed with a hypodermic needle and syringe. Suppose that the dimensions of the needle are length = L,
Ti make toluidine blue stock solution, you add 1 gram of tolonium chloride to 100mL of 70% alcohol. In order to utilize this stain, you add 5mL of the stock solution to 45mL of 1% NaCl solution.
The rate of glycolysis is
Fluorescence in situ hybridization (FISH) is a technique wherechromosomes on a slide can be denatured, allowing single-strandedDNA probes labelled with a fluorescent dye to anneal to genomicDNA.
Research how a SPECIFIC biotechnology application within the above GENERAL examples (or ones not listed above) is used today. Example: Insulin production in bacteria is an example under the general topic of recombinant organisms.
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