Question

question 5
if you looked at your dna results in a light microscope, you would be able to see the dna double helix structure.
a true
b false
question 6
why can you see the dna you obtained from the experiment with your eyes?
a because there is a very large quantity
b because the alcohol stains the dna
c because the dna molecules swell when exposed to salt
d because the nucleus holds the dna

Explanation:

DNA double - helix structure is too small to be seen with a light microscope. The resolution of a light microscope is not high enough to visualize the details of the DNA double - helix. When DNA is extracted in an experiment and visible to the eyes, it is because there is a large quantity of aggregated DNA molecules. Alcohol is used to precipitate DNA, not stain it. Salt is used in DNA extraction for other purposes like breaking cell membranes or stabilizing DNA, not for making it visible. The fact that the nucleus holds DNA has no relation to its visibility to the eyes.

Answer:

Question 5: B. False
Question 6: A. because there is a very large quantity