Proofreading activity to maintain the fidelity of DNA synthesis

1.	Proofreading activity to maintain the fidelity of DNA synthesis
A.	occurs after the synthesis has been completed
B.	is a function of the 3'-5' exonuclease activity of the DNA polymerases
C.	requires the presence of an enzyme separate from the DNA polymerases
D.	occurs in prokaryotes but not eukaryotes
Answer» C. requires the presence of an enzyme separate from the DNA polymerases

Discussion

No Comment Found

Related MCQs

Assertion (A) : DNA finger printing has became a powerful tool to establish paternity and identity of criminal in rape and assault cases. Reason (R) : Trace evidences such as hair, saliva and dried semen are adequate for DNA analysis. Codes
Assertion (A) : Insect resistance transgenic cotton has been produced by inserting Bt gene. Reason (R) : The Bt gene is derived from a bacterium. Code
Assertion (A) : In human being the female play a major role in determining the sex of the offspring. Reason (R) : Women have two X - chromosomes. Codes
Assertion (A) : Dolly was the first cloned mammal. Reason (R) : Dolly was produced by invitro fertilization.
Mendel's law apply only when
Which of the following professional are more likely to run the risk of a permanent change in their cell's DNA ? 1. Rescarchers using carbon 14 isotope 2. X - ray technicia 3. Cola miner 4. Dyer and painter Code
Which one of the following statements is correct ? Cretinism is human disorder which is due to the under secretion of
In the context of genetic disorders, consider the following A women suffer from colour blindness while her husband does not suffer from it. They have a son and a daughter. In this context, which one of the following statements is most probably correct ?
Mendel's law of independent assortment is based on F2 ratio of
Match List_I with List_II and select the correct answer using the codes given below: <table width="100%"><tr><td></td><td>List-I</td><td></td><td>List-II</td></tr><tr><td>F. </td><td>Theory of mutation</td><td>1.</td><td>Beadle and Tatum</td></tr><tr><td>G. </td><td>Theory of evolution</td><td>2.</td><td>Jacob and Monod</td></tr><tr><td>H. </td><td>One gene one enzyme hypothesis</td><td>3.</td><td>Darwin</td></tr><tr><td>J. </td><td>Operon concept</td><td>4.</td><td>De Vries</td></tr></table>Codes<table width="40%"><tr><td></td><td>F</td><td>G</td><td>H</td><td>J</td></tr><tr><td>A.</td><td>3</td><td>4</td><td>1</td><td>2</td></tr><tr><td>B.</td><td>4</td><td>3</td><td>1</td><td>2</td></tr><tr><td>C.</td><td>4</td><td>3</td><td>1</td><td>2</td></tr><tr><td>D.</td><td>3</td><td>4</td><td>2</td><td>1</td></tr></table>

Proofreading activity to maintain the fidelity of DNA synthesis

Discussion

No Comment Found

Related MCQs

Reply to Comment