In prokaryotes, the process of replication is catalysed by the following enzymes. Identify which of the enzymes is best coordinate with the role.
(1) Helicase |
– |
Joins the ends of DNA segments |
(2) DNA polymerase-I |
– |
Synthesises DNA |
(3) DNA polymerase-II |
– |
Erases primer and fills gaps |
(4) Primase |
– |
Synthesises RNA primers |
The main enzyme for DNA replication is
(1)DNA-dependent RNA polymerase
(2) RNA-dependent DNA polymerase
(3) DNA-dependent DNA polymerase
(4) RNA-dependent RNA polymerase
The energy for the DNA replication comes from
(1)Deoxyribonucleosides triphosphates
(2) Deoxyribonucleotides triphosphates
(3) Deoxyribonucleosides
(4) phosphorylation of ATP
Which of the following is incorrect for DNA polymerase?
1. template dependent enzyme
2. highly efficient enzyme
3. high degree of accuracy
4. template independent enzyme
which of the following purposes are not served by Deoxyribonucleoside triphosphates
(1) act as substrate
(2)act as energy source for replication
(3)act as enzyme cofactors
(4)act same as ATP