Cell Cycle

Front

What are the main stages of the cell cycle?

Back

The main stages of the cell cycle are Interphase (G1, S, G2) and the Mitotic phase (M), which includes mitosis and cytokinesis.

Front

What occurs during the S phase of Interphase?

Back

During the S phase of Interphase, DNA replication occurs, resulting in the duplication of chromosomes.

Front

What is the role of checkpoints in the cell cycle?

Back

Checkpoints in the cell cycle monitor and regulate the progression of the cell cycle, ensuring that cells do not proceed to the next phase until certain conditions are met.

Front

What happens during prophase of mitosis?

Back

During prophase, chromatin condenses into visible chromosomes, the nuclear envelope breaks down, and the mitotic spindle begins to form.

Front

What is the significance of metaphase in mitosis?

Back

Metaphase is significant because chromosomes align at the cell's equatorial plane, ensuring that each daughter cell will receive an identical set of chromosomes.

Front

What occurs during anaphase of mitosis?

Back

During anaphase, sister chromatids are pulled apart to opposite poles of the cell, ensuring that each daughter cell will have the correct number of chromosomes.

Front

What is telophase and how does it conclude mitosis?

Back

Telophase is the final stage of mitosis where the chromosomes de-condense, the nuclear envelope re-forms around each set of chromosomes, and the cell prepares to divide.

Front

What is cytokinesis and how does it differ from mitosis?

Back

Cytokinesis is the process that follows mitosis, where the cytoplasm of a parental cell divides into two daughter cells. It differs from mitosis, which is the division of the nucleus.

Front

How many chromosomes do human somatic cells have?

Back

Human somatic cells have 46 chromosomes, arranged in 23 pairs.

Front

What is the difference between haploid and diploid cells?

Back

Haploid cells contain one set of chromosomes (n), while diploid cells contain two sets of chromosomes (2n). Human gametes are haploid, while somatic cells are diploid.