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Biology-Related Homework Help General Biology Topic started by: goldenanchor on Nov 19, 2013



Title: Density gradient centrifugation?
Post by: goldenanchor on Nov 19, 2013
Mastering Bio question:
The experimental technique: Density-gradient centrifugation

When a solution of cesium chloride (CsCl) is subjected to high-speed centrifugation, a stable density gradient is formed. Meselson and Stahl found that when cell contents were subjected to centrifugation with a CsCl solution, a band of DNA formed at the CsCl density that matched the density of the DNA. This technique is called density-gradient centrifugation.

The test tubes below show the results of density-gradient centrifugation of five different DNA samples.
Drag the description of each DNA sample to the appropriate location to identify the expected appearance of the DNA band(s) after density-gradient centrifugation.

Image attached
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Title: Re: Density gradient centrifugation?
Post by: ehd123 on Nov 20, 2013
Check them out here   :) They should look like this

http://raymond.rodriguez1.free.fr/Documents/Cellule-genome/meselsonStahl.png (http://raymond.rodriguez1.free.fr/Documents/Cellule-genome/meselsonStahl.png)


Title: Re: Density gradient centrifugation?
Post by: padre on Nov 20, 2013
It's in French! lol


Title: Re: Density gradient centrifugation?
Post by: ehd123 on Nov 20, 2013
Content hidden


Title: Re: Density gradient centrifugation?
Post by: goldenanchor on Nov 20, 2013
haha thanks. It wasn't perfect but it did help a little. I had to google a few more images to help get the answer. Our teacher didn't cover this in class - but it's on the homework. so frustrating.

Here is what I got - in case anyone else needs help.



Title: Re: Density gradient centrifugation?
Post by: ehd123 on Nov 21, 2013
Yep tell me about it :)

Thank you for sharing.. in english that is  ;)


Title: Re: Density gradient centrifugation?
Post by: hqnnhoc on Jan 26, 2014
Thank you so much.


Title: Re: Density gradient centrifugation?
Post by: babydeen11 on Oct 9, 2014
Thank you so much!


Title: Re: Density gradient centrifugation?
Post by: gbocklet on Nov 4, 2014
This was super helpful


Title: Re: Density gradient centrifugation?
Post by: lollygag on Nov 16, 2014
great thank you


Title: Re: Density gradient centrifugation?
Post by: ynnccs on Dec 1, 2014
thanks


Title: Re: Density gradient centrifugation?
Post by: suebk on Mar 25, 2020
thanks


Title: Re: Density gradient centrifugation?
Post by: holokai on Apr 8, 2020
Thank you! :)


Title: Re: Density gradient centrifugation?
Post by: satyr-hollow on Apr 28, 2020
Thank you!


Title: Re: Density gradient centrifugation?
Post by: Caroline M. on May 20, 2020
thank you!


Title: Re: Density gradient centrifugation?
Post by: Leslie Reyes on Oct 19, 2020
thank you!


Title: Re: Density gradient centrifugation?
Post by: yajairaarroyo on Oct 3, 2021
thankful for this one


Title: BFSF: Density gradient centrifugation?
Post by: ahnaf.daiden@mi on Mar 27, 2024
Thanks!