others

• What is the process of cellular division?

  Cell divides to form 2 new cells
• Why do cells need to divide?

  To repair tissue and manage size
• What is the original cell called before division?

  Parent cell
• What happens to DNA before cell division?

  It replicates to ensure genetic info is complete
• What are the new cells formed after division called?

  Daughter cells
• How do daughter cells compare to parent cells?

  They are identical in type and chromosome number
• What type of reproduction do unicellular organisms use?

  Asexual reproduction
• What is binary fission?

  A method of asexual reproduction in bacteria
• What is an example of a unicellular organism?

  Bacteria
• What is the role of the acrosome in sperm cells?

  It protects the sperm during fertilization
• What does 'n' refer to in sex cells?

  Haploid cells
• What is the function of DNA in cells?

  It controls all cell activities
• What is chromatin?

  Long, thread-like DNA in non-dividing cells
• Why does DNA change from chromatin to chromosome?

  To prevent tangling during cell division
• What is the centromere?

  Primary constriction of a chromosome
• What is the role of cohesin in cell division?

  It keeps sister chromatids together
• What is the function of separase?

  It separates sister chromatids
• What are the types of chromosomes based on centromere position?

  Metacentric, sub-metacentric, acrocentric, telocentric
• What is the role of helicase in DNA replication?

  It unwinds the DNA double helix
• What is the function of RNA primase?

  It starts the DNA replication process
• What is the summary of the cell cycle?

  Interphase → Mitosis → Cytokinesis
• What happens when cells become old or damaged?

  They die and are replaced by new cells
• What are benign tumors?

  Non-cancerous tumors
• What is cancer?

  Many diseases with uncontrolled cell division
• What is the role of the contractile ring in cytokinesis?

  It helps in dividing animal cells
• What occurs during interphase?

  Cell growth and DNA replication
• What is G1 phase in the cell cycle?

  First growth period before synthesis
• What is the significance of the S phase?

  Critical period for DNA synthesis and replication
• What is G2 phase in the cell cycle?

  Post-synthesis growth and preparation for mitosis
• What is the process of mitosis?

  Division of the nucleus followed by cytoplasm
• What happens during prophase?

  Chromosomes coil and move toward the equator
• What occurs during metaphase?

  Chromosomes align in the middle of the cell
• What is anaphase characterized by?

  Separation of sister chromatids to opposite poles
• What happens during telophase?

  Chromosomes uncoil and nuclear envelope reforms
• What is cytokinesis?

  Division of cytoplasm and organelles
• How does cytokinesis differ in animal and plant cells?

  Animal cells pinch in, plant cells form a plate
• What is meiosis?

  Sex cell division resulting in haploid cells
• What are the two successive divisions in meiosis?

  Meiosis I and Meiosis II
• What happens during prophase I of meiosis?

  Homologous chromosomes synapse to form bivalents
• What occurs during metaphase I of meiosis?

  Bivalents align on the equator and attach to spindle