Question

Observation of
Permanent slides of
stages
of
mitosis.?

Answer 1

Answer:

The teacher will place some permanent slides on the stage of compound microscope and ask the students to observe and identify the stages of mitosis.

1. Prophase: In this slide some chromosomes are seen.; The chromosomes arelong and scattered. No spindle fibre is seen. Therefore the stage is Prophase of Mitosis.

2. Pro-Metaphase: In this slide some chromosomes are seen. Spindleapparatus is also seen. The chromosomes are seemed to moving towards equatorial plane. The chromosomes are divided into chromatids. Therefore this is the Pro-Metaphase of Mitosis.

3. Metaphase: Some chromosomes are seen in this slide. Spindle apparatus isseen here. The chromosomes are situated on the equatorial zone. The chromosomes are divided into chromatids. Therefore this is the Metaphaseof Mitosis.

4. Anaphase: In this slide two sets of chromosomes are seen. Two sets arepresent near the two poles. Therefore it is the Anaphase of Mitosis.

5. Telophase: In this slide two sets of chromosomes are seen. Two sets ofchromosomes are present at two poles. No spindle apparatus is seen. Nuclear membrane is present surrounding the chromosomes in each pole. Therefore it is the Telophase of

Explanation:

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Answer 2

Observation of Permanent slides of phases of mitosis:

In mitosis, the nucleus of the Eukaryotic cells distributes into two, hereafter occurring in the splitting of the parent cells into two daughter cells. Therefore, every cell division implicates two chief stages:

Cytokinesis means Cytoplasm division and karyokinesis and Nucleus, division.

The several stages of mitosis are:

• Prophase - The procedure of mitosis is provoked at this stage wherein twisting and thickening of the chromosomes occurs.
• Decreasing and therefore the disappearance of the nucleolus and nuclear membrane takes place.
• The stage attains its final state when a clump of fibres governs the construction of the spindle fibres.

• Metaphase - Chromosomes twirl thick in this stage. The two chromatids from each of the chromosomes arise distinctly.
• Each of the chromosomes is attached to the spindle fibres discovered on its controller.
• Chromosomes align at the centreline.
• Anaphase - Each of the chromatid pairs separates from the centromere and reaches the other end of the cell through the spindle fibre.
• Telophase - Chromatids entered the other end of the cell.
• The disappearance of the spindles.
• Chromatin fibres are constructed as an outcome of the uncoiling of daughter chromosomes.
• The manifestation of two daughter nuclei at the opposing ends due to the reformation of the nucleolus and nuclear membrane
• At this phase, splitting of the cell or cytokinesis may also happen.

Post mitosis, the following stage is pertained to as interphase, which is a portion of the cell cycle that is non-dividing and between two continuous cell divisions. A cell expends most of its life in the interphase. It includes the G1, S and G2 phases.

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