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Cell Cycle And Cell Division

Question

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Which typical stage is known for DNA replication?

Metaphase

G₁- phase

S- phase

G₂- phase

Solution

C.

S- phase

S- phase or Synthesis phase is the phase of the cell cycle in which DNA is replicated. It occurs between G₁ and G₂ phase.

During this phase, DNA is replicated and histones are sythesized so that each chromosomes becomes two chromatids.

Some More Questions From Cell Cycle and Cell Division Chapter

What are two types of cells on the basis of presence or absence of nucleus ?

Name an important event that occurs during meiosis and not during mitosis.

Name a cell that has half the number of chromosomes. Name the process responsible for the reduced number.

Name the sub-stage of meiosis in which crossing over takes place.

At which stage of mitosis, the two chromatids of each chromosome separate and move towards opposite poles.

Name the cell division which is responsible for growth and healing of wounds.

What type of cell division can produce variations ?

Name the active site of meiosis in flowering plants.

What is synapsis ?

Who coined the term mitosis?

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