Part 1…DNA Replication
- Describe a ‘DNA replication machine’.
- Differentiate between conservative and semi-conservative theories of DNA replication.
- Explain in your own words why Okazaki fragments are made.
- Explain how errors in DNA replication are fixed.
- Eukaryotic DNA has several origin sites for replication. Explain why this is the case.
- If one cell is isolated and all the cytosine molecules are labelled with a radioactive tag and then allowed to undergo DNA replication with normal nucleotides, how much radioactive cytosine would be found in the daughter cell DNA and in the next generation’s DNA?
Part 2…Scientist Report
From the list below choose a scientist(s) and research their contribution to our understanding of DNA structure or replication. Write a one page report and include:
- their research
- where they studied and the time period in which they worked
- their experiments and results
- the contribution to our understanding of DNA
Scientists:
Watson & Crick
Sample Solution