Cards (50)

    • What is DNA replication?
      DNA duplication creating identical copies
    • The semi-conservative model ensures genetic information is conserved across generations
    • What is the role of the origin of replication in DNA replication?
      Starting point for replication
    • Prokaryotic DNA replication occurs in a single circular chromosome, while eukaryotic replication involves multiple linear chromosomes.

      True
    • During DNA replication, the double helix unwinds and separates into two single strands
    • Which enzyme adds new nucleotides to the DNA templates during replication?
      DNA polymerase
    • Why is DNA replication important during cell division?
      Ensures genetic information is complete
    • Match the replication model with its description:
      Semi-conservative ↔️ Each new DNA molecule has one original and one new strand
      Conservative ↔️ One new DNA molecule has two original strands and the other has two new strands
      Dispersive ↔️ Each new DNA molecule has mixed old and new segments
    • In the conservative model of replication, one new DNA molecule has two original strands, while the other has two new
    • Describe the stages of DNA replication, focusing on initiation, elongation, and termination.
      1️⃣ Initiation: DNA double helix unwinds at replication origins
      2️⃣ Elongation: DNA polymerase adds nucleotides to the 3' end
      3️⃣ Termination: Replication ends, and DNA ligase joins fragments
    • The DNA double helix unwinds at specific locations called replication origins
    • RNA primers provide a starting point for DNA synthesis.

      True
    • DNA replication continues until the entire DNA molecule has been replicated
    • Match the enzyme with its function:
      Helicase ↔️ Unwinds the DNA double helix
      Primase ↔️ Synthesizes RNA primers
      DNA Polymerase III ↔️ Adds new nucleotides
      DNA Ligase ↔️ Joins Okazaki fragments
    • DNA replication creates two identical copies of the DNA
    • In semi-conservative replication, each new DNA molecule has one original and one new strand.

      True
    • DNA Polymerase III adds new nucleotides to the 3' end
    • The semi-conservative model of DNA replication ensures genetic information is faithfully replicated.
      True
    • DNA Polymerase III adds nucleotides to the 3'
    • The concerted action of enzymes is essential for accurate DNA replication.

      True
    • Where does DNA replication begin in the initiation step?
      Replication origins
    • DNA replication terminates when replication forks meet.

      True
    • What is the role of the origin of replication in DNA replication?
      Initiation point
    • The leading strand is replicated continuously from a single primer.

      True
    • Eukaryotic DNA replication occurs during the S phase of the cell cycle.

      True
    • The semi-conservative model of replication results in one original and one new DNA strand in each new molecule.
      True
    • Describe the stages of DNA replication in the correct order.
      1️⃣ Initiation: DNA double helix unwinds and separates
      2️⃣ Elongation: DNA polymerase adds nucleotides to create new strands
      3️⃣ Termination: Replication ends, resulting in two identical DNA molecules
    • The leading strand is synthesized continuously, while the lagging strand is synthesized in fragments
    • What are the key steps in DNA replication?
      Unwinding, template, synthesis, identity
    • Each single strand of DNA serves as a template for a new complementary strand.
      True
    • The new DNA molecules created during replication are identical to the original
    • In semi-conservative replication, each new DNA molecule contains one original strand and one new strand.

      True
    • How does semi-conservative replication ensure genetic information is passed on accurately?
      One original strand guides new strand creation
    • What type of strands are present in the dispersive model of replication?
      Mixed old and new segments
    • What is the purpose of DNA replication?
      Duplicate DNA
    • Which enzyme unwinds the DNA double helix during initiation?
      Helicase
    • Which enzyme adds new nucleotides to the growing DNA strand during elongation?
      DNA Polymerase III
    • Steps of DNA replication in order
      1️⃣ Initiation
      2️⃣ Elongation
      3️⃣ Termination
    • What is the role of DNA Ligase in DNA replication?
      Joins Okazaki fragments
    • Which enzyme is responsible for unwinding the DNA double helix during replication?
      Helicase