Sapling Learning macmillan learning Shihab Shahidullah Jump to.. Attempts Scare6

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Sapling Learning macmillan learning Shihab Shahidullah Jump to.. Attempts Scare6/25/2018 11:55 PM 05/15 Gradebook Print Calcu/iatorP Periodic Table 48 Question 1 f 15 Available From: Duc Date: Points Possible: Grade Category: 5/24/2018 10:55 PM 6/25/2018 11:55 PM 15 Homework Sapling Learning famous experiment, Matthew Meselson and Franklin Stahl grew E. coli cells in a medium containing only the 'heavy" isotope of nitrogen, N. These cells were then transferred to a medium with the "light isotope of nitrogen, N. The results of the experiment supported the hypothesis of semiconservative replication, which was proposed by Watson and Crick. a) Heavy DNA (5N DNA), hybrid DNA, and light DNA N DNA) can be separated by centrifugation. If cells containing 5N DNA are transferred to a medium with only HN NH4Cl as a nitrogen source, what percent of daughter molecules are composed of hybrid DNA after 2 generations? You can check your answers. You can view solutions when you complete or give up on anry question. You can keep trying to answer each question until you get it right or give up. You lose 5% of the points available to each ncorrect b) Predict what percent of daughter molecules would be composed of hybrid DNA if DNA exhibited in your question for each i conservative replication-tha is, if a daughter DNA molecule were composed of newly synthesized DNA only attempt at that answer 10 eTextbook 25 12 Help With This Topic There is a hint available! View the hint by clicking on the bottom divider divider bar again to hide the hin. 13 O Web Help & Videos Close 15 Previous Give Up & View Solution 0 Check Answer Next Ext Technical Hint

Explanation / Answer

a. after two generation the hybrid DNA percentage will be 25%( because suppose DNA replication is semiconsertative in 1st generation 50% hybrid form and in 2nd generation it will be 25%)

b. if replication is cinservative then the hydrid formation percent will be 0% because there is no template is use for new DNA synthesis

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