- Question 5 1 5 Points Who First Developed A Protocol For Purification Of Dna And Confirmed That Dna From Pneumococcus S 1 (29.95 KiB) Viewed 10 times
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QUESTION 7 1.5 points In a famous experiment, DNA was shown to replate semi-conservatively. For this experiment to work, the scientists who performed it first had to demonstrate that: 15N- and N-containing DNA can be distinguished from each other using densly gradient centrifugation There are three total possible species of DNA with respect to 15 and 14 content 15w and are different isotopes of nitrogen with different densities. Bacterial DNA contains more 15 with every round of replication, QUESTIONS 2.1 points (does or does NOT) transform cells into Heat killed Pneumococcus S-cell extract that has been treated with Proteases cells. The conclusion that can be drawn from this result is that Does: Protein is NOT the transforming principle Does, DNA is the transforming principle Dons NOT, protein is NOT the transforming principle Does NOT. DNA in the transforming principle 2.1 points QUESTION 9
wut, instorming principle Does NOT, protein is NOT the transforming principle Does NOT: DNA is the transforming principle 2.1 points this result? QUESTION 9 In the famous bacteriophage heredity experiment, 35s was in the supernatant after centrifugation. What were they able to conclude from Because the supernatant contained the viral coats, they concluded that protein contained the code for virus production, Because the supernatant contained the DNA, they concluded that DNA DID contain the code for virus production. Because the supernatant contained the viral coats, they concluded that protein did NOT contain the code for virus production Because the supernatant contained the DNA, they concluded that DNA did NOT contain the code for virus production. QUESTION 10 2.1 points If you performed the famous semi-conservative replication experiment we learned about in class and observed two bands after one generation as shown, you would know that DNA does NOT replicate:
2.1 points What would you barve in a population of with a motion in that come to think every on the template strandwm ac? Prase would incorporate instead of A into the primar, and the mutation would be passed down to the next generation in both sands of DNA Primase would incorporate instead of A into the primar, and these mutations would be passed down to the next generation but only in one strand of the ONA Prime would incorporate Ginstead of A into the primar, but one of the mutations would be passed down to the next generation Primase would incorporate the corect nucleotide because how it reads the template is relevant QUESTION 13 2.1 points La The bacterial version of Topoisomer is inhibited by the antibiotic profloxacin "pro"). How would pro affect tactional Colle? DNA replication would fall due to the lack of a primer for DNA polymotion DNA replication would be normal on the leading strand, but it would be significantly lowed on the inging and DNA replication would fol due to the ability to separate the two strands of DNA DNA replication would begin, but would eventually all due to the increase in twisting beyond the piction for 2.1 points QUESTION 14 What would you observe in a cell in which DNA helicase was inactivated? DNA on would begin, but would eventually stal due to the incin twisting beyond the replication for DNA replication would fall due to the absence of a primer for DNA polymotion DNA replication would fol due to the inability to separate the two strands of DNA DNA replication would bcur on the leading strand, but not the lagging strand