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प्रश्न
Very Short Answer Question:
Why are Okazaki fragments formed on lagging strand only?
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उत्तर
- The two strands in DNA are antiparallel i.e. one strand runs in 5’ → 3’ direction whereas the other runs in 3’ → 5’.
- The DNA polymerase synthesizes a new DNA strand in 5’ → 3’ direction only.
- Leading template is synthesized continuously and lagging template is synthesized discontinuously.
- Due to 5’ → 3’ polymerizing activity of DNA polymerase Okazaki fragments are formed only on lagging strand only.
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संबंधित प्रश्न
Describe the process of semiconservative replication of DNA with the help of a neat and labelled diagram.
Which of the following statements is not true about DNA replication in eukaryotes?
Match Column I with Column II and select the correct option among the following.
| Column I | Column II | ||
| i. | DNA replication | a. | RNA polymerase |
| ii. | Translation | b. | DNA polymerase |
| iii. | Transcription | c. | Reverse transcriptase |
| iv. | Reverse transcription | d. | t-RNA- amino acid complex |
When DNA directs the synthesis of chemical molecules other than itself, then such functions of DNA are known as ______.
Which of the following technique was used by Meselson and Stahl to demonstrate the semiconservative mode of DNA replication?
Which of the following represents the autocatalytic functions of DNA?
Assertion (A): DNA replication is said to be semi-conservative.
Reason (R): After DNA replication, each daughter molecule has one old and one new strand.
When the DNA molecule appears like inverted Y, it is ______
Which of the following DNA polymerase enzyme in eukaryotes has 5' -3' exonuclease activity?
Enzyme involved in synthesis of RNA primer.
