Advertisements
Advertisements
प्रश्न
What is the basis for the difference in the synthesis of the leading and lagging strand of DNA molecules?
पर्याय
Origin of replication occurs only at the 5' end of the molecules.
DNA ligase works only in the 3' → 5' direction
DNA polymerase can join new nucleotides only to the 3' end of the growing stand.
Helicases and single-strand binding proteins that work at the 5' end.
Advertisements
उत्तर
DNA polymerase can join new nucleotides only to the 3' end of the growing stand.
संबंधित प्रश्न
A DNA segment has 75 cytosine and 40 thymine nucleotides. What shall be the total number of phosphates in the DNA segment?
For which of the following purpose agarose gel electrophoresis technique is used?
______ heavy isotope was used by Meselson and Stahl during their experiment.
E. coli, in which both the strands of DNA are labeled with 15N is transferred to 14N medium and allowed to replicate for three generations. What would be the number of hybrid DNA molecules in the third generation?
Identify the CORRECT combination of statements with respect to DNA synthesis.
I. Always the direction of DNA polymerization 5' → 3' when referring to the polarity of strand being synthesized.
II. DNA ligase forms hydrogen bonds between two newly synthesized DNA strands.
III. DNA polymerases on their own cannot initiate the process of replication.
IV. DNA polymerase can catalyse polymerization in both 5'→ 3' and 3'→ 5' direction.
Which of the following is the function of single-strand binding proteins?
Which one of the following can form a nucleotide of DNA?
Select the mis-matched pair.
Match the following column.
| Column - I | Column - II |
| (A) DNA structure | 1. Muller and stadder |
| (B) Semiconservative replication of DNA | 2. Beadle and partum |
| (C) One gene-one enzyme theory | 3. Watson and crick |
| (D) Induction of mutation | 4. Massillon and stahl |
Enzyme involved in synthesis of RNA primer.
