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Mendelian Genetics

AP Biology· difficulty 3/5

For AaBb × AaBb, what fraction of offspring show the recessive phenotype for <strong>both</strong> traits?

  • A

    1/4

  • B

    3/16

  • C

    1/16

    check_circle
  • D

    9/16

Explanation

aabb: 1 of 16 boxes in the dihybrid Punnett square → 1/16.

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