Podcast
Questions and Answers
What is the main purpose of DNA replication during cell division?
What is the main purpose of DNA replication during cell division?
- To repair DNA damage in cells
- To ensure the formation of two identical daughter cells (correct)
- To increase genetic diversity in daughter cells
- To form different daughter cells
Why is DNA replication considered semi-conservative?
Why is DNA replication considered semi-conservative?
- Each new DNA has both old strands from the original DNA.
- Each new DNA has two completely new strands.
- Each new DNA has only one old strand.
- Each new DNA has one old and one new strand. (correct)
What is the function of pre-replication complex proteins like ORC and MCM?
What is the function of pre-replication complex proteins like ORC and MCM?
- They are responsible for breaking down the DNA strands.
- They are involved in DNA repair mechanisms.
- They regulate cell cycle checkpoints.
- They recognize origins of replication and recruit DNA replication machinery. (correct)
In which direction does DNA synthesis always proceed?
In which direction does DNA synthesis always proceed?
Why do DNA polymerases require a primer to initiate chain synthesis?
Why do DNA polymerases require a primer to initiate chain synthesis?
Where does DNA replication start in eukaryotic cells?
Where does DNA replication start in eukaryotic cells?
Which enzyme is responsible for adding deoxynucleotides to the free hydroxyl group at the 3′ end of the primer during DNA replication?
Which enzyme is responsible for adding deoxynucleotides to the free hydroxyl group at the 3′ end of the primer during DNA replication?
What is the function of Primases in DNA replication?
What is the function of Primases in DNA replication?
Which enzyme is essential in unwinding the parental DNA strands during DNA replication?
Which enzyme is essential in unwinding the parental DNA strands during DNA replication?
What is the function of Topoisomerases during DNA replication?
What is the function of Topoisomerases during DNA replication?
Which enzyme is responsible for ligation of different strands that are being formed, especially in the lagging strand?
Which enzyme is responsible for ligation of different strands that are being formed, especially in the lagging strand?
What complex is involved in synthesizing the leading strand during DNA replication?
What complex is involved in synthesizing the leading strand during DNA replication?
What is the function of the clamp loader in DNA replication?
What is the function of the clamp loader in DNA replication?
What is the role of DNA polymerase-alpha in primer synthesis during DNA replication?
What is the role of DNA polymerase-alpha in primer synthesis during DNA replication?
Which enzyme is responsible for polymerizing the lagging strand during DNA replication?
Which enzyme is responsible for polymerizing the lagging strand during DNA replication?
What is the main function of the complex formed by DNA polymerase δ (Pol δ)-PCNA-Rfc in DNA replication?
What is the main function of the complex formed by DNA polymerase δ (Pol δ)-PCNA-Rfc in DNA replication?
What is a common feature of all telomeres that relates to their orientation on the chromosome?
What is a common feature of all telomeres that relates to their orientation on the chromosome?
During DNA replication, what does the term 'concurrent' refer to?
During DNA replication, what does the term 'concurrent' refer to?
