Understanding Cell Division

What are the stages of mitosis?

• Interphase, Prophase, Anaphase, Telophase

• Prophase, Metaphase, Telophase, Interphase

• Prophase, Metaphase, Anaphase, Telophase, Cytokinesis

• Prophase, Metaphase, Anaphase, Cytokinesis

Describe the process of meiosis.

• Meiosis is a two-stage process of cell division that results in four haploid cells.

• Meiosis is a process that occurs only in prokaryotic cells.

• Meiosis produces eight diploid cells through one round of division.

• Meiosis is a single-stage process that results in two diploid cells.

How is the cell cycle regulated?

• The cell cycle is controlled solely by external nutrients.

• The cell cycle is regulated by DNA replication only.

• The cell cycle is regulated by checkpoints and cyclins/CDKs.

• The cell cycle is managed by the size of the cell alone.

What role does cancer play in cell division?

• Cancer plays a role in cell division by causing uncontrolled and abnormal cell growth.

• Cancer promotes normal cell growth.

• Cancer has no effect on cell division.

• Cancer slows down cell division.

Explain the process of apoptosis in cells.

• Apoptosis is a form of cell division that increases cell numbers.

• Apoptosis is the process of cells becoming cancerous and proliferating uncontrollably.

• Apoptosis is a programmed cell death process involving initiation, caspase activation, cellular changes, formation of apoptotic bodies, and phagocytosis.

• Apoptosis is a type of inflammation that occurs in response to injury.

What are stem cells and how do they divide?

• Stem cells are only found in adult organisms and do not divide.

• Stem cells can only become muscle cells and do not differentiate into other types.

• Stem cells are fully differentiated cells that cannot divide.

• Stem cells are undifferentiated cells that can divide and differentiate into various cell types.

What happens during prophase of mitosis?

• Chromatin condenses into chromosomes, nuclear envelope breaks down, and mitotic spindle forms.

• Chromatin remains uncondensed, and the cell undergoes apoptosis.

• The nuclear envelope thickens, and the cell enters interphase.

• Chromosomes are replicated, and the cell prepares for cytokinesis.

How does meiosis contribute to genetic diversity?

• Meiosis increases genetic diversity through crossing over and independent assortment.

• Meiosis decreases genetic diversity by eliminating chromosomes.

• Meiosis has no effect on genetic diversity.

• Meiosis only occurs in somatic cells, not in gametes.

What checkpoints are involved in the cell cycle?

• S checkpoint

• Q checkpoint

• G1 checkpoint, G2 checkpoint, M checkpoint

• R checkpoint

How can uncontrolled cell division lead to cancer?

• Uncontrolled cell division leads to slower growth of tumors.

• Cancer is caused by a lack of cell division.

• Excessive cell division prevents tumor formation.

• Uncontrolled cell division leads to cancer by causing excessive cell proliferation and tumor formation.