Prepare for NEET Biology Molecular Basis of Inheritance (Replication) with MCQs & PYQs on NEET.GUIDE. Access free practice, previous year questions, and expert solutions to study semi-conservative DNA replication and enzymes involved.
NEET Questions / Botany / Molecular Basis of Inheritance / Replication
The enzyme used to join the DNA fragments is
Topoisomerase
Adenosine deaminase
DNA ligase
DNA polymerase
In prokaryotic cells, which enzyme erases primer and fill gaps in DNA
Helicase
Primase
DNA polymerase-II
DNA polymerase-I
In prokaryotic cells, which enzyme erases primer and fill gaps in DNA
Helicase
Primase
DNA polymerase-II
DNA polymerase-I
When DNA replication starts
The leading strand produces Okazaki fragments
The hydrogen bonds between the nucleotides of two strands break
The phosphodiester bonds between the adjacent nucleotides break
The bonds between the nitrogen base and deoxyribose sugar break
In prokaryotes, the process of replication is catalysed by the following enzymes. Identify which of the enzymes is best coordinate with role.
DNA gyrase: DNA unwinding
DNA polymerase III: DNA synthesis
Primase: Joining Okazaki fragments
Ligase: Primer synthesis
Meselson and Stahl experiment on semi-conservative replication demonstrates
50% radioactive, 50% non-radioactive
50% non-radioactive
50% radioactive
None of the above
DNA repairing is done by
Ligase
DNA polymerase-III
DNA-polymerase-II
DNA-polymerase-I
DNA replication includes
Unwinding the double helix, synthesizing new DNA strands, and joining Okazaki fragments
Transcribing DNA into RNA, translating RNA into protein, and folding the protein
Breaking down glucose, producing ATP, and releasing carbon dioxide
Packaging DNA into chromosomes, separating chromosomes during cell division, and distributing chromosomes to daughter cells
The experimental proof for. semiconservative replication of DNA was first shown in a
Virus
Fungus.
Plant
Bacterium
