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Dihybrid crosses Original Scenario-Based Practice

Biology · Heredity · Biology · Mendelian Genetics

1 Biology practice questions on Dihybrid crosses. Questions built around original scenarios.

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Questions

  1. 1.

    In the twilight grove of Eldoria, botanists study the bioluminescent star-lily, where petal luminosity and nectar scent are governed by two independently assorting gene pairs. Luminous petals (L) are completely dominant over dull petals (l), and sweet vanilla scent (V) is completely dominant over unscented petals (v). If two dihybrid plants with the genotype LlVv are cross-pollinated and yield 480 viable seeds, how many seedlings are expected to produce dull, vanilla-scented flowers?

    • A) 30 seedlings
    • B) 60 seedlings
    • C) 90 seedlings
    • D) 270 seedlings

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