LL HL HH Generations after ¹4N transfer 0 1 2
Biochemistry
9th Edition
ISBN:9781319114671
Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.
Chapter1: Biochemistry: An Evolving Science
Section: Chapter Questions
Problem 1P
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Question
A scientist successfully analyzed a new micro-organism. Because this micro-organism contains double-stranded DNA as genetic material, Meselson-Stahl techniques was employed. The following shows the results of the experiment where L – light chain (14N) and H – heavy chain (15N).
What is the mechanism of replication in this organism in the picture? Explain how you got the answer.
- The following piece of DNA is sequenced using the dideoxy method: 3’-AAGCGGCTAATCC-5’. Accidentally, you forget to include dATP in the four reactions that contain a ddNTP. What is the sequence of the daughter strand produced from this sequencing activity? Show the process.
- The following piece of DNA is sequenced using the dideoxy method: 3’-AAGCGGCTAATCC-5’. Accidentally, you forget to include dATP in the four reactions that contain a ddNTP. How many bands will appear in the lane containing ddATP? Show the process.
- The following piece of DNA is sequenced using the dideoxy method: 3’-AAGCGGCTAATCC-5’. Accidentally, you forget to include dATP in the four reactions that contain a ddNTP. The reaction vessel containing which ddNTP will produce the greatest number of bands in the electropherogram? Show the process.
.
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