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Assertion: In oocytes, diplotene can last for months or years Reason: It is at this stage that chromosome decondense and engage in RNA synthesis

Assertion: Mitosis is called equational division. Reason: Mitosis is the division of parent cell into two identical daughter cells having the same amount of DNA as in parent cell.

Assertion: The interphase is considered as the most active stage of cell cycle. Reason: This phase is a period of intense synthesis and growth

Assertion: Disappearance of nuclear membrane is generally essential for karyokinesis. Reason: Forward movement of chromosomes is dependent on spindle apparatus, which organise is cytoplasm.

Assertion: Kinetochore is essential for cell division. Reason: Kinetochore serves as the sites of attachment of spindle fibres to the chromosome.

Assertion: Meiosis is also known as reduction division. Reason: Meiosis reduces the number of chromosome in daughter cells.

Assertion: Meiosis produces four genetically dissimilar cells. Reason: Crossing over or gene exchange takes place in meiosis.

Assertion: In mitotic metaphase, morphology of chromosomes can most easily study. Reason: Condensation of chromosomes is completed in this stage.

Assertion: Cell growth results into division. Reason: Cell growth leads to change in nucleocytoplasmic ratio.

Assertion: During pachytene crossing over takes place which is dependent on recombinase. Reason: Recombinase is the group of enzymes involved in crossing over and crossing over is an enzyme dependent process.