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Title: Experimental prediction: Predicting the results after additional rounds of repli Post by: PR3CiSiON on Mar 25, 2014 To confirm the semiconservative model of replication, it was important for Meselson and Stahl to quantify the amount of DNA in each band produced by density-gradient centrifugation. To accomplish this, they took advantage of the fact that DNA absorbs ultraviolet light, and used UV light to photograph each tube.
By scanning the UV photographs with a microdensitometer, graphs like the ones below were produced. The height of each peak in the graph is directly proportional to the concentration of DNA in the corresponding band. Also, the position of each peak reflects the 14N and 15N content of the band. Suppose that the scientists analyzed the same amount of DNA (10 units) by density-gradient centrifugation after two, three, and four rounds of replication in 14N medium. What would you predict the microdensitometer graph would look like after each round? Drag each microdensitometer graph to the appropriate bin. Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: padre on Mar 26, 2014 Content hidden
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: Hubis_Dubis on Apr 6, 2014 Thank you!
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: Reborn526 on Apr 20, 2014 thanks!
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: geri0108 on Apr 25, 2014 Thanks a lot !
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: terpz on May 1, 2014 Thanks!
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: jdex119 on May 16, 2014 thanks
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: FrogSpirit on May 18, 2014 Thank you. This was helpful! This was a tricky one!! :-\
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: ariall on May 23, 2014 merci!
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: mrcnidaria on May 23, 2014 Wow! I never would have figured that out!
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: elliot9007 on Jun 23, 2014 Thanks
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: alowjblg on Jul 21, 2014 Thanks
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: dci503 on Jul 27, 2014 thanks
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: cathy378 on Jul 27, 2014 Thank you!
Title: Re: Experimental prediction: Predicting the results after additional rounds of repli Post by: imanibertran05 on Jan 28, 2021 thank you
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