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Questions and Answers
Which enzyme is responsible for removing the RNA primer during eukaryotic DNA replication?
Which enzyme is responsible for removing the RNA primer during eukaryotic DNA replication?
- DNA Polymerase α
- DNA Polymerase ε
- FEN1 (correct)
- DNA Polymerase δ
What is the function of telomeres in eukaryotic chromosomes?
What is the function of telomeres in eukaryotic chromosomes?
- To repair DNA damage
- To protect the ends of chromosomes (correct)
- To facilitate DNA replication
- To remove introns during mRNA splicing
What triggers cellular senescence in eukaryotic cells?
What triggers cellular senescence in eukaryotic cells?
- Activation of oncogenes
- Exposure to mutagens
- Extensive telomere shortening (correct)
- DNA replication errors
Which enzyme is responsible for adding telomeric repeats to the ends of chromosomes?
Which enzyme is responsible for adding telomeric repeats to the ends of chromosomes?
Which direction do DNA and RNA polymerases synthesize their nucleic acids in?
Which direction do DNA and RNA polymerases synthesize their nucleic acids in?
Which type of polymerase requires a pre-existing 3'-OH to begin synthesis?
Which type of polymerase requires a pre-existing 3'-OH to begin synthesis?
Which strand of the parent molecule becomes the leading strand during DNA synthesis?
Which strand of the parent molecule becomes the leading strand during DNA synthesis?
What is the function of DNA ligase during DNA replication?
What is the function of DNA ligase during DNA replication?
Which enzyme is responsible for unwinding the DNA double helix during replication?
Which enzyme is responsible for unwinding the DNA double helix during replication?
Which direction does DNA replication occur?
Which direction does DNA replication occur?
Which enzyme is responsible for synthesizing a new DNA strand by adding complementary nucleotides?
Which enzyme is responsible for synthesizing a new DNA strand by adding complementary nucleotides?
What is the function of telomerases?
What is the function of telomerases?
Which enzyme separates the strands of dsDNA during DNA replication?
Which enzyme separates the strands of dsDNA during DNA replication?
Which direction does the leading strand synthesize in relation to the replication fork movement?
Which direction does the leading strand synthesize in relation to the replication fork movement?
What is the function of primase in DNA replication?
What is the function of primase in DNA replication?
Where can DNA replication begin?
Where can DNA replication begin?
Which enzyme removes incorrect, mispaired nucleotides introduced by DNA polymerase errors?
Which enzyme removes incorrect, mispaired nucleotides introduced by DNA polymerase errors?
What is the function of topoisomerases during DNA replication?
What is the function of topoisomerases during DNA replication?
Which type of topoisomerase requires energy from ATP to cut both strands of DNA?
Which type of topoisomerase requires energy from ATP to cut both strands of DNA?
What is the role of DNA polymerase III in DNA replication?
What is the role of DNA polymerase III in DNA replication?
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