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Dihybrid crosses

Biology • Mendelian Genetics • Knowledge-Based • 1 questions

Dihybrid crosses Knowledge-Based Download PDF

Biology · Heredity · Biology · Mendelian Genetics

1 Biology practice questions on Dihybrid crosses. Questions that assess core concepts and understanding.

Questions

  1. 1.

    In pea plants, the allele for tall stems (T) is dominant over dwarf stems (t), and the allele for purple flowers (P) is dominant over white flowers (p). If two plants with the genotype TtPp are crossed, what proportion of the offspring is expected to display dwarf stems and purple flowers?

    • A) 1/16
    • B) 3/16
    • C) 9/16
    • D) 1/4