2. Which of the following intermolecular forces exist in DNA? For each IMF prese

Question

2. Which of the following intermolecular forces exist in DNA? For each IMF present in DNA explain which part (functional group, ion, or associated molecule - e.g, water) participates in the interaction, Dispersion (London) forces Hydrogen bonding Ion-Dipole forces 3. The function of soaps, detergents and phospholipids depends on a feature that they have in common. What is this structural commonality? 4. Describe, in your own words, the three basic steps required to isolate DNA. Explain the purpose of each step

Explanation / Answer

2) Hydrogen bonding is present in DNA.Adenine pair with thymine by two hydrogen bonding while guanine with cytosine by three hydrogen bonding

3) they all possess fatty acid chain

4) Isolation of DNA : 1) lysis of cells : so that nucleus may be ruptured and dna may come out of it

2) Precipitation: the lysate contains various debris and proteins they need to be removed out.precipitation separate out dna from this debris

3) purification : it involves washing of dna with alcohal

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