Question

(a) Draw a labelled diagram of a ‘‘replicating fork’’ showing the polarity. Why does DNA replication occur within such ‘forks’ ?
(b) Name two enzymes involved in the process of DNA replication, along with their properties.

Answer 1

Replicating Fork.

Explanation:

• DNA replication is the technique through which one molecule of DNA  leads to the formation of two identical copies of DNA.The DNA replication takes place in all living organisms.

• DNA replication occur within replicating forks because in replicating fork a numberof proteins are attached which help in the DNA Synthesis initiation and continuation's  process.
• The two enzymes which are involved in the process of DNA replication are as follows:
• DNA Helicase: It unwinds the DNA double Helix.
• DNA ligase: It plays an important role in the joining of DNA strands together by accelarating  the formation of a phosphodiester bond.