Mitosis | MCQs

Explanation

• Cytophase is not a stage of mitosis.

The stages of mitosis are:

1. Prophase
2. Metaphase
3. Anaphase
4. Telophase

Explanation

Mitosis Stages:

Karyokinesis: Division of the nucleus (prophase, metaphase, anaphase, telophase).

Cytokinesis: Division of the cytoplasm (occurs after karyokinesis).

Explanation

The cell cycle is also known as the cell division cycle.

It is the sequence of changes that occurs between one cell division and the next.

Explanation

• In Telophase, the chromatids (now called chromosomes) have reached the poles of the cell and their movement ceases.
• The nuclear envelope begins to reform around each set of chromosomes, and the cytoskeleton reorganizes to prepare the cell for cytokinesis (cell division).

Explanation

• During prophase of mitosis in an animal cell, separation of centrioles occurs.
• The centrioles move to opposite poles of the cell to help organize the mitotic spindle.

Explanation

• In metaphase, the chromosomes (now consisting of two sister chromatids each) align themselves at the center of the cell, attached to the microtubules of the mitotic spindle.
• This forms the metaphase plate, where each chromosome is positioned at the equator of the cell, ready for separation.

Explanation

Mitosis is a type of cell division that involves the replication of a cell's DNA and the division of the cell into two daughter cells. It is essential for:

• Growth: Mitosis allows an organism to grow and develop by increasing the number of cells.
• Repair: Mitosis helps replace damaged or dead cells with new ones.
• Asexual reproduction: Mitosis enables asexual reproduction, where an organism produces offspring that are genetically identical to the parent.

Explanation

• Mitosis is a process of cell division that results in the production of two daughter cells, each with the same number of chromosomes as the parent cell.
• This process is essential for growth, repair, and asexual reproduction in living organisms.

Explanation

• Telophase is the stage of mitosis where chromosomes reach their respective poles.
• During Telophase, the nuclear envelope reforms around each set of chromosomes, and the chromosomes uncoil into chromatin.

Explanation

• During Metaphase, the chromosomes align at the center of the cell, attached to the spindle fibers formed by the centrioles (also known as microtubules).
• This is the stage where the chromosomes are connected to the spindle fibers, preparing for separation.