During which stage of mitosis do sister chromatids separate and move toward opposite poles?, prophase, metaphase, anaphase, telophase, Which event occurs during prophase I of meiosis but does NOT occur during mitosis?, Chromosomes condense, Nuclear membrane breaks down, Homologous chromosomes pair and undergo crossing over, Spindle fibres attach to centromeres, Crossing over contributes to genetic variation because it, Doubles the chromosome number., Exchanges DNA between homologous chromosomes., Separates sister chromatids., Produces identical daughter cells., Which statement is TRUE regarding metaphase I and metaphase of mitosis?, Sister chromatids align at the equator in both stages., Chromosome number is reduced during metaphase., Crossing over occurs in both stages., Homologous chromosome pairs align at the equator only in metaphase I., Independent assortment occurs because, Homologous chromosome pairs orient randomly at the equator during metaphase I., Sister chromatids separate randomly during mitosis., Crossing over occurs during anaphase I., DNA replication occurs before meiosis II., Which process ensures that chromosome number remains constant from one generation to the next?, DNA replication only, Mitosis followed by fertilisation, Cytokinesis only, Meiosis followed by fertilisation, A student observes a cell with homologous chromosomes moving toward opposite poles while sister chromatids remain attached. The cell is in, Anaphase of mitosis, Anaphase I of meiosis, Anaphase II of meiosis, Telophase I of meiosis, Which combination correctly describes the products of meiosis?, Two diploid cells genetically identical to the parent cell., Four haploid cells genetically identical to one another., Four haploid cells genetically different from one another., Two haploid cells genetically different from one another., A cell has 24 chromosomes. After completing meiosis II, each daughter cell contains, 6, 12, 24, 48, A scientist discovers a chemical that prevents spindle fibres from attaching to kinetochores. Which stage of mitosis would be directly affected?, prophase, metaphase, anaphase, telophase, A mutation prevents homologous chromosomes from pairing during prophase I. Which outcome is expected?, Mitosis cannot occur., Crossing over cannot occur efficiently., Sister chromatids separate earlier., DNA replication is inhibited., Which statement best explains why meiosis is essential in sexually reproducing organisms?, It increases the chromosome number in gametes., It produces genetically identical offspring., It maintains the chromosome number of the species after fertilisation., It ensures all offspring have identical characteristics., A diploid cell (2n = 8) undergoes meiosis. Which statement is correct?, Four daughter cells are produced, each containing 8 chromosomes., Two daughter cells are produced, each containing 4 chromosomes., Four daughter cells are produced, each containing 4 chromosomes consisting of one chromatid each., Four daughter cells are produced, each containing 8 chromatids., Which statement correctly describes cytokinesis in animal cells?, A cell plate forms between the two daughter nuclei., The plasma membrane pinches inward to divide the cytoplasm., Homologous chromosomes separate into opposite poles., DNA replication occurs before the cell divides., Why is mitosis important for multicellular organisms?, It produces gametes for sexual reproduction., It reduces the chromosome number by half., It enables growth, tissue repair, and replacement of damaged cells., It increases genetic variation among offspring.

TOPIC 3 : CELL DIVISION

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