iPad 9:29 AM Post-Lab Questions . What is the texture and consistency of the DNA
ID: 204720 • Letter: I
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iPad 9:29 AM Post-Lab Questions . What is the texture and consistency of the DNA? 2. Why did we use a salt in the extraction solution? 3. Is the DNA soluble in the aqueous solution or alcohol? 4. What else might be in the ethanol/aqueous interface? How could you eliminate this? . Which DNA bases pair with each other? How many hydrogen bonds are shared by each pair? 6. How is information to make proteins passed on through generations? 7. Watch the Virtual Lab demonstrating DNA Extraction (located in your Student Portal and/or course's lab introduction). In this experiment, how do the Lysis Solution and the Salt Solution vary by function? 8. Identify one step which was included in the Virtual Lab which was not required inExplanation / Answer
1. The answer is
The DNA in long strands with minor major grooves. The reason for the major and minor groves the bond angale between the nitrogen bases.
2. As the salt increases the repulosion forces between sugar phophase back bone to solvent, it help in the precipitation.
3. The DNA has a negatively charged sugar phosphate backbone, so it is solublue in polar aqueous solutions. It is not solutble in non polar solvent like alchol etc.
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