Questions and Answers
What happens in Step 1 of DNA replication?
Helicase unzips the DNA molecule
What occurs in Step 2 of DNA replication?
Primase attaches RNA primers to the DNA strand to begin replication
What is the role of DNA polymerase in Step 3 of DNA replication?
DNA polymerase attaches nucleotides to the DNA strand
What happens during Step 4 of DNA replication?
Signup and view all the answers
What is the end product of DNA replication in Step 5?
Signup and view all the answers
Study Notes
Steps of DNA Replication
- Helicase Action: The enzyme helicase unwinds the double helix structure of DNA, separating the two strands to create a replication fork.
- Role of Primase: Primase synthesizes short RNA primers that provide a starting point for the synthesis of new DNA strands, critical for the initiation of replication.
- Function of DNA Polymerase: DNA polymerase attaches complementary nucleotides to the growing DNA strand, facilitating the elongation process and ensuring accurate base pairing.
- Ligase's Role: DNA ligase connects Okazaki fragments on the lagging strand by sealing gaps in the phosphate backbone, ensuring the integrity of the new DNA molecule.
- Final Outcome: The replication process results in the formation of two identical DNA molecules, each containing one original and one newly synthesized strand, maintaining genetic fidelity.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz provides flashcards detailing the steps of DNA replication. Each card outlines a specific step in the process, from helicase unzipping the DNA to ligase filling in the phosphate backbone. Perfect for students studying molecular biology or genetics.