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Reproduction and Cell Division

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Questions and Answers

What is the phase where chromosomes duplicate but remain attached?

Synthesis Phase (S)

What is the phase where more RNA and proteins are synthesized?

Second Growth Phase (G₂)

What is the phase where two daughter cells are produced from a mother cell?

Mitosis

What is the phase where the cell prepares for karyokinesis?

Interphase Signup and view all the answers

Which phase is considered the resting phase in the cell cycle?

Resting phase (R) Signup and view all the answers

What process do amoeba or bacteria use to reproduce?

Mitosis Signup and view all the answers

What special kind of cell division occurs in the reproductive organs of higher forms like humans?

Meiosis Signup and view all the answers

What is the significance of the reduction in chromosome number during meiosis?

It produces sex cells with genetic diversity. Signup and view all the answers

What is the function of the cell cycle in a cell?

To duplicate DNA and produce daughter cells. Signup and view all the answers

List three important tasks a cell must complete before dividing.

Grow, synthesize materials, duplicate DNA. Signup and view all the answers

What is the series of events in a cell that leads to the duplication of its DNA and the division of the cell?

Cell cycle Signup and view all the answers

What are the two main phases of a cell cycle?

Interphase and M-phase (mitosis) Signup and view all the answers

Why was interphase formerly called the 'resting phase' of the cell?

Because no change in chromosomes is visible externally during interphase. Signup and view all the answers

What are the three phases of interphase?

First growth phase, synthesis phase, and second growth phase. Signup and view all the answers

What happens during the First Growth Phase (G1) of interphase?

RNA and proteins are synthesised, and the volume of cytoplasm increases. Signup and view all the answers

What occurs during the Synthesis Phase (S) of interphase?

More DNA is synthesised and the chromosomes are duplicated. Signup and view all the answers

Describe the Second Growth Phase (G1) of interphase.

It is a shorter growth phase where RNA and proteins necessary for cell division are synthesised. Signup and view all the answers