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What is the process of DNA synthesis?

Abstract. DNA biosynthesis occurs when a cell divides, in a process called replication. It involves separation of the DNA double helix and subsequent synthesis of complementary DNA strand, using the parent DNA chain as a template. The other strand (lagging strand) has to be synthesized in segments (Okasaki fragments).

When replication is complete How do the 2 new DNA molecules compare to each other?

When replication is complete, how do the 2 new DNA molecules compare to each other & the original DNA molecule? They are identical to each other and to the original strand of DNA.

What is the second stage of DNA replication?

What happens in the second (of four) step of DNA replication? Nextan enzyme “unzips” the DNA strands. (An enzyme called helicase breaks the hydrogen bonds between base pairs in DNA, causing the DNA to unzip.)

Why is it important for DNA replication to occur?

The purpose of DNA replication is to produce two identical copies of a DNA molecule. This is essential for cell division during growth or repair of damaged tissues. DNA replication ensures that each new cell receives its own copy of the DNA.

Is DNA gyrase found in eukaryotes?

Gyrase is present in prokaryotes and some eukaryotes, but the enzymes are not entirely similar in structure or sequence, and have different affinities for different molecules. This makes gyrase a good target for antibiotics.

What happens if DNA gyrase is inhibited?

Bacterial DNA gyrase (topoisomerase II) and topoisomerase IV are required for DNA synthesis. Inhibition of DNA gyrase blocks relaxation of supercoiled DNA, relaxation being a requirement for transcription and replication.

Would DNA replication occur in the absence of DNA gyrase?

Would DNA replication occur in the absence of DNA gyrase? Without its function, it would not be possible to separate the strands to begin the process of replication. A prokaryotic replisome typically contains three molecules of DNA pol III, but only one molecule of DNA pol I.