Podcast
Questions and Answers
What is the primary role of helicase in DNA replication?
What is the primary role of helicase in DNA replication?
- To add nucleotides to the new strands
- To synthesize new DNA strands
- To unwind the DNA double helix (correct)
- To initiate the formation of replication forks
During which phase of Interphase does DNA replication take place?
During which phase of Interphase does DNA replication take place?
- M phase
- G1 phase
- G2 phase
- S phase (correct)
Which enzyme is responsible for adding nucleotides to the new DNA strands?
Which enzyme is responsible for adding nucleotides to the new DNA strands?
- Primase
- DNA polymerase (correct)
- Helicase
- Ligase
What occurs at the replication forks during DNA replication?
What occurs at the replication forks during DNA replication?
What role do various proteins play at the replication fork?
What role do various proteins play at the replication fork?
What is the significance of origins of replication in DNA replication?
What is the significance of origins of replication in DNA replication?
Which of the following correctly describes the function of DNA polymerase?
Which of the following correctly describes the function of DNA polymerase?
What characterizes the structure and activity of the replication fork during DNA replication?
What characterizes the structure and activity of the replication fork during DNA replication?
Which statement about the role of helicase in DNA replication is correct?
Which statement about the role of helicase in DNA replication is correct?
What is the primary event that occurs during the S-stage of Interphase?
What is the primary event that occurs during the S-stage of Interphase?
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Study Notes
DNA Replication Overview
- DNA replication produces two identical DNA replicas from one original molecule.
- Essential for biological inheritance, occurring in all living organisms.
Process of DNA Replication
- Initiates at specific locations called origins of replication within the genome.
- Unwinding of DNA accomplished by helicase, an enzyme that forms replication forks.
- Replication forks grow bi-directionally from the origin.
Role of Proteins in Replication
- Various proteins associate with the replication fork to facilitate DNA synthesis.
- DNA polymerase is the key enzyme that synthesizes new DNA strands.
- DNA polymerase adds nucleotides that are complementary to the template strands.
Timing of DNA Replication
- DNA replication occurs during the S (synthesis) stage of Interphase.
DNA Replication Overview
- DNA replication produces two identical DNA replicas from one original molecule.
- Essential for biological inheritance, occurring in all living organisms.
Process of DNA Replication
- Initiates at specific locations called origins of replication within the genome.
- Unwinding of DNA accomplished by helicase, an enzyme that forms replication forks.
- Replication forks grow bi-directionally from the origin.
Role of Proteins in Replication
- Various proteins associate with the replication fork to facilitate DNA synthesis.
- DNA polymerase is the key enzyme that synthesizes new DNA strands.
- DNA polymerase adds nucleotides that are complementary to the template strands.
Timing of DNA Replication
- DNA replication occurs during the S (synthesis) stage of Interphase.
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