Biology Final 2024

Front

What is the first stage of mitosis?

Back

Prophase: The chromatin condenses into visible chromosomes, and the nuclear envelope begins to break down.

Front

What is the second stage of mitosis?

Back

Metaphase: Chromosomes align at the cell's equatorial plane, and spindle fibers attach to the centromeres.

Front

What is the third stage of mitosis?

Back

Anaphase: Sister chromatids are pulled apart to opposite poles of the cell.

Front

What is the fourth stage of mitosis?

Back

Telophase: Chromatids reach the poles, the nuclear envelope re-forms, and chromosomes begin to de-condense.

Front

Define mitosis.

Back

Mitosis is the process of cell division that results in two genetically identical daughter cells from a single parent cell.

Front

What is the role of spindle fibers in mitosis?

Back

Spindle fibers help separate the chromosomes during cell division by attaching to the centromeres and pulling them apart.

Front

What happens during prophase?

Back

During prophase, chromatin condenses into chromosomes, the nuclear envelope disintegrates, and spindle fibers begin to form.

Front

What is the significance of metaphase in mitosis?

Back

Metaphase ensures that chromosomes are properly aligned and attached to spindle fibers, which is crucial for accurate chromosome separation.

Front

What occurs during anaphase?

Back

During anaphase, the sister chromatids are separated and moved to opposite ends of the cell, ensuring each daughter cell will receive an identical set of chromosomes.

Front

What changes occur in telophase?

Back

In telophase, the chromosomes de-condense, the nuclear envelope reforms around each set of chromosomes, and the cell prepares for cytokinesis.