Question 57 (1.5 points) Which of the following statement is true with regards to the bacterial DNA polymerases III and I? Both DNA pol III and DNA pol I exhibit 3 'to 5' polymerase activity DNA pol III exhibits 3' to 5' exonuclease activity while DNA pol I exhibits 5'to 3' exonuclease activity DNA pol III is responsible for removing RNA primers only in the leading daughter strand DNA pol III replaces RNA primers with DNA in both the leading and lagging strands Two of the choices are correct
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Both DNA pol III and DNA pol I exhibit 3' to 5' polymerase activity: This statement is incorrect. DNA polymerases exhibit 5' to 3' polymerase activity, not 3' to 5'. Show more…
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Which of the following statement is true with regards to the bacterial DNA polymerases III and I? Both DNA pol III and DNA pol I exhibit 3 'to 5' polymerase activity DNA pol III exhibits 3' to 5' exonuclease activity while DNA pol I exhibits 5'to 3' exonuclease activity DNA pol III is responsible for removing RNA primers only in the leading daughter strand DNA pol III replaces RNA primers with DNA in both the leading and lagging strands Two of the choices are correct
Sri K.
"Question 28 Which of the following statements is FALSE? The lagging strand of DNA is started by an RNA primer. DNA polymerase joins nucleotides in one direction (5' to 3') only: DNA replication proceeds in only one direction around the bacterial chromosome The leading strand of DNA is made continuously:"
Marlyn J.
1. DNA pol I and III both have proofreading capability. True False 2. DNA pol I has both 5'-3' and 3'-5' exonuclease activities. True False 3. DNA pol III removes RNA primers from Okazaki fragments. True False 4. DNA pol III synthesizes the leading strand in the 5'-3' direction and the lagging strand in the 3'-5' direction. True False 5. If an incorrect nucleotide is added during DNA replication, it will always be recognized and removed by the polymerase. True False
Josee P.
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