A Meselson-Stahl-experiment was performed to study the DNA replication ofa newly discovered bacterium. This bacterium takes 30 min to complete a roundof replication at 37° C. Figure 2.1 shows the autoradiography of the replicatingDNA molecule.BACDFigure 2.1(i)Describe the result of this experiment.

J.Cairns used autoradiography to establish the semi-conservative nature of DNA replication and the…

Answered: A Meselson-Stahl-experiment was…

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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ment Lopez Chun 1 1006 is Diego 5. For the following DNA strand, complete the following: a. Write the complementary DNA strand below the strand. 5'-A CCTA CGTTC GACGTA ACCGCAT T-3' 3-T6G AT GCAAG CTGCATT GG C6TAA_5² b. Replicate the DNA strand (remember semiconservative replication). 5'-AC CTA CGTTCGAC GTAA CCGCATT-3' 3'- 5'- 3'- 5'-ACCGTTCGACGTAACCGCATT-3' - 5' 138 DNA and BLAST Lab Report - 3' - 5' OLD NEW NEW OLD c. Transcribe the 5' to 3'DNA to an mRNA strand (remember there is NO thymine in RNA). 5'-A CCTA CGTTCGACGTA ACCG CATT-3' DNA mRNA d. Take mRNA strand and convert to amino acid (protein) using mRNA codon table (Table 4). Remember mRNA is read 5' to 3' so you will need to re-write the sequence to begin with the 5'end. Start protein at the AUG sequence. mRNA Protein
short answer
What technique was used to photograph DNA in franklins famous photo #51? A- gamma ray photography B- atomic force microscopy C- electron microscopy D- x-Ray crystallography
Indicate below the name of the chromosomal regions that are squared and named respectively A and B on Figure 1
Match items in Column A with most related ones in B. Write the letters on the space provided.
Slide 5 Please help me explain this on my report on cell dogma
Below is shown a plasmid map from a recombinant DNA experiment you have performed. You inserted your gene of interest (labeled gene on the map) into the lac Z reporter gene via a Hind III site. If you digested this recombinant DNA with HindIII what is the size of the DNA fragment(s) you would obtain on a DNA gel electrophoresis? The plasmid alone is 4000 bp. I have attached the image below.
Restriction endonucleases are bacterial enzymes that cleave duplex (double-stranded) DNA at specific nucleotide sequences. The mode of replication of the animal virus SV40 has been investigated by using restriction endonucleases that cleave SV40 DNA into a number of unique segments. Like most viruses, SV40 DNA is circular. The map positions of the 11 fragments produced by a pair of restriction endonucleases are shown on the next page. Immediately following a 5 or 10 minute pulse of radioactively labeled thymidine, labeled SV40 molecules that have completed replication during the pulse are isolated. These newly replicated DNA molecules are digested by the restriction endonucleases and the resulting fragments are analyzed for the relative amounts of pulse label they contain. The results are in the table below. Assume that at the time the label was added there was a random population of replicating SV40 DNA molecules in all possible stages of synthesis. From the information given below,…
DNA from a newly discovered virus was purified, and UV light absorption was followed as the molecule was slowly heated. The absorbance increase at the melting temperature was only 10%. What does this result tell you about the structure of the viral DNA?
Choose the one answer that fits best. Which of the following statements regarding bacteria is NOT correct? a. During conjugation, two bacteria exchange genetic information directly via pili b. Bacterial populations have a higher mutation rate because their DNA Polymerases do not have proofreading capability c. Bacterial growth by binary fission is exponential and each division usually takes only a couple of hour or less d. Plasmids carry just a few genes and are replicated independently from the bacterial chromosome e. Cocci that are arranged in clusters/bunches are called staphylococci
Click Submit to complete this assessment. Question 20 Why do most replication errors occur? O 1. DNA polymerases work very fast and mistakes are inevitable. O 2. DNA repair mechanisms do not work well O 3. DNA replication is a slow and uncommon process. O 4. The hydrogen bonds between base pairs are weak. 5. DNA ligase often binds incorrect sections of DNA. A Click Submit to complete this assessment.
In the figure, which ketter represents DNA polymerase 1 D AA BB C.C DD EE

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