Homework Answers
Answer:
High fidelity of DNA replication is ensured by 5'-3' exonuclease activity of DNA polymerase I
Explanation:
- High fidelity is ensured by the proofreading activity (exonuclease activity) of the DNA polymerase enzyme which is from 3'-5' direction.
- All the other options pertaining to the DNA replication are true.
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Question 5 4 pts Which of the following statements in NOT true about DNA replication? DNA...
Which of the following statements in NOT true about DNA replication? DNA replication involves synthesis of...
Which of the following statements in NOT true about DNA replication? DNA replication involves synthesis of multiple RNA primers DNA ligase is needed for successful DNA replication DNA replication requires deoxyribonucleotide triphosphates High fidelity of DNA replication is ensured by 5-3' exonuclease activity of DNA polymerase High fidelity of DNA replication is ensured by 3-5' exonuclease activity of DNA polymerases Next
Which of the following statements in NOT true about DNA replication? DNA replication involves synthesis of...
Which of the following statements in NOT true about DNA replication? DNA replication involves synthesis of multiple RNA primers DNA ligase is needed for successful DNA replication DNA replication requires deoxyribonucleotide triphosphates High fidelity of DNA replication is ensured by 5-3 exonuclease activity of DNA polymerase High fidelity of DNA replication is ensured by 3-5' exonuclease activity of DNA polymerases Next
Which of the following statements about eukaryotic DNA replication is false? A) DNA polymerase can add...
Which of the following statements about eukaryotic DNA replication is false? A) DNA polymerase can add new nucleotides to either free 3'- or 5'-end B) RNA primers must be removed and rejected by the deoxynucleotides C) RNA primers must be laid down during DNA replication for synthesis of new DNA that starts at the 3'-OH of the primer ends D) Elongation of the DNA strand during replication requires primers with free 3'OH end E) The very end of the chromosome...
QUESTION 2 Which of the following statement is true for both DNA replication and transcription? A....
QUESTION 2 Which of the following statement is true for both DNA replication and transcription? A. Both polymerases catalyze the formation of phosphodiester bonds between nucleotides. B. Primers are required to provide 3'-OH group for both polymerases to initiate the synthesis of DNA or RNA. C. DNA and RNA synthesis both proceed in a 5' to 3' direction or, in other words, nucleotides are added to the 3'- OH groups of the growing chains. D. Two of the above. O...
NA primase is TRUE? 27. Which ONE of the following statements about DNA primase is in...
NA primase is TRUE? 27. Which ONE of the following statements about DNA primase is in polymerase cannot extend a new A) It is necessary for DNA synthesis because DNA polymerase canno strand in the 3 to 5' direction. B) It proofreads bases added by DNA polymerase. C) It is a type of RNA polymerase. D) It has terminal transferase activity. 28. How many of the following statements about PCNA are TRUE? • It encircles ssDNA. • It is an...
Which of the following is true regarding DNA replication (see Chapter 16 in the textbook). Check...
Which of the following is true regarding DNA replication (see Chapter 16 in the textbook). Check all that are correct. Question options: A) DNA ligase joins Okazaki fragments on the lagging strand. B) DNA replication results in one double helix with all parental strand and one double helix with completely newly synthesized DNA. C) Nucleases add RNA primers to start replication. D) DNA replication starts at multiple points along the eukaryotic genome. E) Helicases prevent separation of the DNA strands...
Place the following steps of DNA replication in order from the beginning to the end of...
Place the following steps of DNA replication in order from the beginning to the end of the process. Your answer will be a series of numbers (1-5) in what you think is the correct order. 1. Joining of Okazaki fragments by DNA ligase 2. Priming of DNA synthesis with RNA primer 3. Opening and stabilizing the DNA strands 4.removal of primers by DNA polymerase lexonuclease 5. elongation of RNA primers by DNA polymerase III
1. DNA Structure and Replication fill in the blanks. 10pts and , have two nitrogenous rings...
1. DNA Structure and Replication fill in the blanks. 10pts and , have two nitrogenous rings and are a. The bases, called direction and reads the b. DNA Polymerase synthesizes new DNA in the template DNA strand in the direction. c. DNA polymerases use -exonuclease activity to proofread newly synthesized DNA. Whereas, DNA Pol I uses _-exonuclease activity to remove RNA primers. d. The enzyme telomerase synthesizes using as a template. e. DNA Replication begins at the and two ,,...
Describe DNA replication on the leading and lagging strands of DNA. Your answer must include a...
Describe DNA replication on the leading and lagging strands of DNA. Your answer must include a description of the roles of the following enzymes: -DNA polymerase I (5’-3’polymerase activity, 3’-5’ exonuclease activity, 5’-3’ exonuclease activity) -DNA polymerase III (5’-3’polymerase activity, 3’-5’ exonuclease activity) -helicase, primase, ligase, gyrase
Question 14 4 pts Which one of the following enzymes WILL NOT participate in DNA replication?...
Question 14 4 pts Which one of the following enzymes WILL NOT participate in DNA replication? O RNA ploymerase O DNA polymerase Ligase O Helicase Question 15 4 pts In DNA replication - if one DNA strand has nucleotide sequence as 5'ATGCITCCT3, The other strand of the DNA will have nucleotide sequence as and it will be synthesized in direction. OUACGAAGGA; 3' to 5' direction OTACGAAGGA; 3' to 5' direction OTACGAAGGA; 5' to 3' direction OTUCGUUGGU; 5' to 3' direction
Which of the following statements in NOT true about DNA replication? DNA replication involves synthesis of multiple RNA primers DNA ligase is needed for successful DNA replication DNA replication requires deoxyribonucleotide triphosphates High fidelity of DNA replication is ensured by 5-3' exonuclease activity of DNA polymerase High fidelity of DNA replication is ensured by 3-5' exonuclease activity of DNA polymerases Next
Which of the following statements in NOT true about DNA replication? DNA replication involves synthesis of multiple RNA primers DNA ligase is needed for successful DNA replication DNA replication requires deoxyribonucleotide triphosphates High fidelity of DNA replication is ensured by 5-3 exonuclease activity of DNA polymerase High fidelity of DNA replication is ensured by 3-5' exonuclease activity of DNA polymerases Next
QUESTION 2 Which of the following statement is true for both DNA replication and transcription? A. Both polymerases catalyze the formation of phosphodiester bonds between nucleotides. B. Primers are required to provide 3'-OH group for both polymerases to initiate the synthesis of DNA or RNA. C. DNA and RNA synthesis both proceed in a 5' to 3' direction or, in other words, nucleotides are added to the 3'- OH groups of the growing chains. D. Two of the above. O...
NA primase is TRUE? 27. Which ONE of the following statements about DNA primase is in polymerase cannot extend a new A) It is necessary for DNA synthesis because DNA polymerase canno strand in the 3 to 5' direction. B) It proofreads bases added by DNA polymerase. C) It is a type of RNA polymerase. D) It has terminal transferase activity. 28. How many of the following statements about PCNA are TRUE? • It encircles ssDNA. • It is an...
Place the following steps of DNA replication in order from the beginning to the end of the process. Your answer will be a series of numbers (1-5) in what you think is the correct order. 1. Joining of Okazaki fragments by DNA ligase 2. Priming of DNA synthesis with RNA primer 3. Opening and stabilizing the DNA strands 4.removal of primers by DNA polymerase lexonuclease 5. elongation of RNA primers by DNA polymerase III
1. DNA Structure and Replication fill in the blanks. 10pts and , have two nitrogenous rings and are a. The bases, called direction and reads the b. DNA Polymerase synthesizes new DNA in the template DNA strand in the direction. c. DNA polymerases use -exonuclease activity to proofread newly synthesized DNA. Whereas, DNA Pol I uses _-exonuclease activity to remove RNA primers. d. The enzyme telomerase synthesizes using as a template. e. DNA Replication begins at the and two ,,...
Question 14 4 pts Which one of the following enzymes WILL NOT participate in DNA replication? O RNA ploymerase O DNA polymerase Ligase O Helicase Question 15 4 pts In DNA replication - if one DNA strand has nucleotide sequence as 5'ATGCITCCT3, The other strand of the DNA will have nucleotide sequence as and it will be synthesized in direction. OUACGAAGGA; 3' to 5' direction OTACGAAGGA; 3' to 5' direction OTACGAAGGA; 5' to 3' direction OTUCGUUGGU; 5' to 3' direction
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