AH 1.5 - Protein control of cell division

Identify the term used to describe the phase in which microtubules shorten by depolymerisation, sister chromatids are separated and chromosomes are pulled to opposite poles.

• Prophase

• Metaphase

• Anaphase

• Telophase

Identify the term used to describe the phase that involves the chromosomes being aligned at the metaphase plate.

• Prophase

• Metaphase

• Anaphase

• Telophase

Identify the term used to describe the phase that involves the DNA condensing into chromosomes each consisting of two sister chromatids.

• Prophase

• Metaphase

• Anaphase

• Telophase

Identify the term used to describe the phase that involves the spindle microtubules extending from the MTOC by polymerisation and attaching to chromosomes.

• Prophase

• Metaphase

• Anaphase

• Telophase

Identify the term used to describe the phase that involves the nuclear membrane reforming around the chromosomes that are beginning to decondense.

• Prophase

• Metaphase

• Anaphase

• Telophase

Identify the stage shown in the diagram.

• Prophase

• Metaphase

• Anaphase

• Telophase

Name structure X

(a)  

Identify the stage shown in the diagram.

• Prophase

• Metaphase

• Anaphase

• Telophase

Identify the definition that correctly describes Retinoblastoma

• The protein that polymerises into long chains or filaments that form microtubules.

• A gene involved in the control of cell division that can mutate to form a tumour promoting oncogene.

• Proteins that control cell cycle progression by activating CDK enzymes

• A tumour suppressor protein that promotes progression to S phase when phosphorylated.

Identify the definition that correctly describes tubulin.

• The protein that polymerises into long chains or filaments that form microtubules.

• A gene involved in the control of cell division that can mutate to form a tumour promoting oncogene.

• Proteins that control cell cycle progression by activating CDK enzymes

• A tumour suppressor protein that promotes progression to S phase when phosphorylated.