Advertisements
Advertisements
प्रश्न
Very Short Answer Question:
Why are Okazaki fragments formed on lagging strand only?
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
How CO2 makes idlies puffy?
Which enzyme does remove supercoils from replicating DNA?
A DNA segment has 75 cytosine and 40 thymine nucleotides. What shall be the total number of phosphates in the DNA segment?
How Meselson and Stahl explained the concept of Semiconservative Replication of DNA experimentally?
What is the basis for the difference in the synthesis of the leading and lagging strand of DNA molecules?
For which of the following reason RNA primer is must for initiation of DNA replication?
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.
Which of the following term correctly describes the movement of ribosome on the mRNA?
In eukaryotic organisms, replication of DNA occurs in ______.
Statement I - In prokaryotes, there is only replicon however in eukaryotes, these are several replicons in tandem.
Statement II - Two separated strands in a replicon of DNA are prevented from re-joining by helicase enzyme.
In light of above statements, choose the correct answer from the option given below.
