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Comparing mitosis and meiosis Original Scenario-Based Practice

Biology · Heredity · Biology · Meiosis & Sexual Reproduction

1 Biology practice questions on Comparing mitosis and meiosis. Questions built around original scenarios.

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  1. 1.

    A team of astrobiologists discovers that a lunar organism repairs its protective shell tissues via Mode Alpha division, while generating its reproductive gametes through Mode Beta division. To classify these mechanisms alongside terrestrial cell division pathways, researchers analyze the nuclear events unique to each process. Which observation reliably distinguishes Mode Beta from Mode Alpha?

    • A) Mode Beta produces daughter cells that are genetically identical clones of the parent cell, whereas Mode Alpha generates genetically unique offspring cells.
    • B) Mode Beta undergoes two distinct rounds of DNA replication to yield four nuclei, whereas Mode Alpha replicates its DNA only once before dividing.
    • C) Mode Beta separates sister chromatids during its first division, whereas Mode Alpha separates homologous chromosomes during anaphase.
    • D) Mode Beta involves the synapsis of homologous chromosomes and crossing over during prophase, whereas Mode Alpha lacks pairing of homologous chromosomes.

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