Podcast
Questions and Answers
Where does DNA replication occur in prokaryotes and eukaryotes?
Where does DNA replication occur in prokaryotes and eukaryotes?
- In the nucleus for both prokaryotes and eukaryotes
- In the cytoplasm for prokaryotes and in the nucleus for eukaryotes (correct)
- In the nucleus for prokaryotes and in the cytoplasm for eukaryotes
- In the cytoplasm for both prokaryotes and eukaryotes
What is the main implication of the Watson and Crick DNA model for replication?
What is the main implication of the Watson and Crick DNA model for replication?
- Combine the DNA strands together
- Separate the 2 strands
- Unwind the DNA molecule
- Make a complementary copy for each strand (correct)
Which model of DNA replication involves separating the two strands and making a complementary copy for each strand?
Which model of DNA replication involves separating the two strands and making a complementary copy for each strand?
- Conservative model
- Combination model
- Dispersive model
- Semiconservative model (correct)
What is the result of DNA replication in terms of the old and new DNA strands?
What is the result of DNA replication in terms of the old and new DNA strands?
What was the outcome of the Matthew Meselson & Frank Stahl experiment involving E. coli cultured in 15N and 14N mediums?
What was the outcome of the Matthew Meselson & Frank Stahl experiment involving E. coli cultured in 15N and 14N mediums?
Which isotope of nitrogen is by far the most abundant?
Which isotope of nitrogen is by far the most abundant?
In which step of the Matthew Meselson & Frank Stahl experiment was E. coli cultured in a 15N medium?
In which step of the Matthew Meselson & Frank Stahl experiment was E. coli cultured in a 15N medium?
What does the term 'bidirectional' mean in the context of DNA replication?
What does the term 'bidirectional' mean in the context of DNA replication?
What does the term 'conservative model' propose about DNA replication?
What does the term 'conservative model' propose about DNA replication?
What is the purpose of centrifuging the extracted DNA samples on a salt density gradient?
What is the purpose of centrifuging the extracted DNA samples on a salt density gradient?
In which medium did the DNA synthesized after 1 replication cycle have a higher density?
In which medium did the DNA synthesized after 1 replication cycle have a higher density?
After 2 replication cycles in a 14N medium, how many bands of DNA were observed?
After 2 replication cycles in a 14N medium, how many bands of DNA were observed?
Which model did the Meselson-Stahl experiment not fit, and why?
Which model did the Meselson-Stahl experiment not fit, and why?
What did the dispersive model predict, and how did it compare to the observed results?
What did the dispersive model predict, and how did it compare to the observed results?
Which type of DNA replication did the data from the Meselson-Stahl experiment support?
Which type of DNA replication did the data from the Meselson-Stahl experiment support?
What is the purpose of using CsCl salt solution in centrifugation?
What is the purpose of using CsCl salt solution in centrifugation?
After 3 cycles in a 14N medium, how many bands of DNA were observed?
After 3 cycles in a 14N medium, how many bands of DNA were observed?
"Which type of replication did the dispersive model predict, and how did it compare to the observed results?"
"Which type of replication did the dispersive model predict, and how did it compare to the observed results?"
Which of the following is NOT a proposed model for DNA replication?
Which of the following is NOT a proposed model for DNA replication?
What is the main implication of the Watson and Crick DNA model for replication?
What is the main implication of the Watson and Crick DNA model for replication?
Which step of the Matthew Meselson & Frank Stahl experiment involved culturing E. coli in a 15N medium?
Which step of the Matthew Meselson & Frank Stahl experiment involved culturing E. coli in a 15N medium?
What is the result of DNA replication in terms of the old and new DNA strands?
What is the result of DNA replication in terms of the old and new DNA strands?
What is the main implication of the Meselson-Stahl experiment?
What is the main implication of the Meselson-Stahl experiment?
What does the dispersive model predict, and how did it compare to the observed results?
What does the dispersive model predict, and how did it compare to the observed results?
What was the outcome of the Matthew Meselson & Frank Stahl experiment involving E. coli cultured in 15N and 14N mediums?
What was the outcome of the Matthew Meselson & Frank Stahl experiment involving E. coli cultured in 15N and 14N mediums?
What is the purpose of using CsCl salt solution in centrifugation?
What is the purpose of using CsCl salt solution in centrifugation?
Which model did the Meselson-Stahl experiment not fit, and why?
Which model did the Meselson-Stahl experiment not fit, and why?
Which type of replication did the dispersive model predict, and how did it compare to the observed results?
Which type of replication did the dispersive model predict, and how did it compare to the observed results?
In which medium did the DNA synthesized after 1 replication cycle have a higher density?
In which medium did the DNA synthesized after 1 replication cycle have a higher density?
Which type of DNA replication did the data from the Meselson-Stahl experiment support?
Which type of DNA replication did the data from the Meselson-Stahl experiment support?
