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In a dihybrid cross of two true breeding parents (AAbb x aaBB), where each trait is autosomal, what ratio of the F2 progeny will be ab? Lower case letters represent recessive alleles. a. 2:16 6.3:1 9:16 c d. None of these e. 3:16 Oto

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The trait is autosomal, the ratio of the F2 progeny will be ab . a. 2:16 for  dihybrid cross of two true breeding parents (AAbb x aaBB).

  • A Dihybrid move of authentic breeding mother and father AAbb x aaBB
  • Parents AAbb x aaBB
  • Gamates A b a B
  • F1 AaBb
  • AaBb x AaBb
  • Gametes AB Ab aB ab AB Ab aB ab
  • F2 Punnett square
  • AB Ab aB abAB AABB AABb AaBB AaBbAb AABb AAbb AaBb AabbaB AaBB AaBb aaBB aaBbab AaBb Aabb aaBb aabb
  • The ratio of F2 progeny aaBb 2: 16

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