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Mitosis
Part C
Question | Answer |
---|---|
What is Interphase? | Cell is growing and develops organelles. |
What is Growth Phase? | The phase of G2. |
What is the Synthesis Phase? | The chromosomes replicate in the nucleus x2 chromosomes |
What is Prophase? | Centrioles move to the opposite ends, nuclear envelope disappears, chromosomes coil up into visible structures |
What is Metaphase? | Spindle fibres attach on to the chromosomes and line them up in the middle, spindel fibres attach onto the centromere |
What is Anaphase? | Spindel fibres retract and pull 1/2 the chromosomes towards each centromole. |
What is Telophase? | Spindel fibres are back in the centrioles, nuclear envelopes are starting to form back around both sets of chromosomes, chromosomes uncoil to become chromatin |
What is Cell Check Points? | Researchers have discovered that there are points in the cell cycle where proteins determine whether the cell should divide or not. If the cell does not pass the signal check, it is repaired/destroyed |
What is Cytokinesis? | Cell membrane pinches off into the middle and separates into 2 daughter cells. |
What is Apoptosis? | Cells starting to die when it is too old to function |
What are cancer cells? | Cells that can undergo mitosis an unlimited number of times, never dies on its own, does not function normally, its DNA becomes mutated by genetics, smoking etc. |
What are tumours? | Cells that clump together due to an uncontrollable urge to divide |