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The alcohol used causes the precipitate to form due to a reaction allowing the hydrogen bonds between the nucleotides to form, which causes the DNA to become efficient packed and twisted together.

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Q: What causes the DNA to precipitate and spool on the rod?
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Related questions

Would chromosomal DNA spool if it was heated to 100 degrees?

If heated to a hundred degrees, chromosomal DNA would denature. Meaning the it would come apart and the complementary DNA strands would separate. One way to get DNA to spool (around a glass rod for example) is to remove it from the cell and precipitate it in solution. This can be done with with help of sodium chloride and isoamyl alcohol.


Why does native DNA precipitate as fibers?

Native DNA precipitates as fibers when alcohol is added to a solution containing DNA. The DNA fibers can then be spooled onto a glass rod.


What structural characteristic of DNA allows it to be spooled out on a rod?

DNA can be spooled out on a glass rod because of its long length.


DNA soluble in ethanol?

No, DNA is not soluble in ethanol. When the 2 are mixed, DNA can be spooled out by stirring the solution with a glass rod.


Is DNA soluble in ethanol?

No, DNA is not soluble in ethanol. When the 2 are mixed, DNA can be spooled out by stirring the solution with a glass rod.


What structures contain the cells DNA?

The two-rod structures that contain the cell's DNA is the chromosome.


Rod shaped bodies that carry genetic info?

The bodies that carry genetic information are rod shaped, not red. These bodies are referred to as DNA, which is deoxyribonucleic acid.


When a cell divides its DNA condenses into rod-like what?

you never did


When a cell divide DNA condenses into a rod-like what?

you never did


DNA and protein in a coiled rod-shaped form that occurs during cell division?

DNA ans histones proteins coil to form rod shaped structures called chromosomes.


What two structures contain DNA?

The two-rod structures that contain the cell's DNA is the chromosome.


Rod shaped structure made of DNA?

Chromosomes are rod-shaped structures made of coiled DNA and proteins. They carry genetic information and are found in the nucleus of most living cells.