help with question 5&8 please Draw and label the structure of a nucleosome 4. Wh

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help with question 5&8 please

Draw and label the structure of a nucleosome 4. What did you leam about theropert learn about the properties ofDNAwhen 1 ou have isolated DNA lo 5. What structural property allowed DNA, but not RNA to be spooled out by a glas rod? Wlt s the fiaete what is the functionofethyl alcolo ? 1 cnewed jus elas a sou+srthes ei alcchol isi a solubon 7. List three important uses of genomic DNA in the laboratory - Diagns - pesu endent Belevutrs phones 8. You are asked to determine DNA content of a liver tissue. Describe how you will proceed in finding amount of DNA in the sample. 25

Explanation / Answer

answer 5. ---- The homogenate should contain only DNA and the components of homogenizing medium of the components remaining in the homogenate , only DNA is not soluble in ice cold ethanol , molecular structure of DNA remains intact the genetic substance should precipitate as a thick , stringy white mass that may be spooled out by a glass rod.

answer 8 ---- To measure the DNA content , the cells have to be stained with fluorescent dye that binds to DNA in a manner that reflects accurately the amount of DNA present.

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