Dna Replication Diagram Ncert. (a) dna is a macromolecule since two strands of dna cannot be separated in its entire length (due to very high energy requirement), the replication occur in small replication fork. There can be dna replication without cell division.
Draw a neat, labelled diagram of a pistil showing pollen tube growth and its entry into the ovule. Ncert book for class 12 biology chapter 6 molecular basis of inheritance is available for reading or download on this page. Explain the role of the enzymes involved in dna replication.
Replication fork is an asymmetric structure, because the replication in the two arms of y is not similar.
These steps require the use of more than dozen enzymes and protein factors. Due to sheer size of chromosome in eukaryotes, chromosome chromosome contains multiple origin of replication. Ncert solutions, ncert exemplars, revison notes, free videos, cbse papers, mcq tests & more. (i) the 5′ → 3′ polymerase activity is responsible for primer extension or dna synthesis.