In the classic Meselson and Stahl experiment, Coli are first grown in 15N-enriched media (0th generation) and subsequently switched to 14N media. A DNA sample isolated during the first generation of E. Coli grown in 14N media is subjected to a centrifugation step in a dense CsCl gradient. Assuming that replication occurs in a semiconservative fashion, the DNA sample will .
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Biology, 22.06.2019 01:30
What type of competition exsist between two species. turtles and fish
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Biology, 22.06.2019 02:30
Plz ! for many generations farmers in north america have been choosing to cross corn plants with large ears of corn each year this results in the new generation of plants also growing large ears of corn. what is the technique called? a. selective breeding. b. natural selection. c. mitosis. d. asexual budding.
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Biology, 22.06.2019 04:40
Which of the following was a characteristic of a dromaeosaur? modified front claw grasping with their forelimbs both a and b none of the above
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In the classic Meselson and Stahl experiment, Coli are first grown in 15N-enriched media (0th genera...
Mathematics, 02.11.2020 16:40
Mathematics, 02.11.2020 16:40