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Question: Answered & Verified by Expert
In a dihybrid cross AABB × aabb, F2 progeny of AABB, AABb, AaBB and AaBb occurs in the ratio of
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A 1 : 1 : 1 : 1
  • B 9 : 3 : 3 : 1
  • C 1 : 2 : 2 : 1
  • D 1 : 2 : 2 : 4
Solution:
1463 Upvotes Verified Answer
The correct answer is: 1 : 2 : 2 : 4
The genotype is the genetic make up of an organism. For a dihybrid cross, it will be:
Genotypic ratio: AABB : AaBB : AABb : AaBb : AAbb : Aabb : aaBB : aaBb : aabb
1    :     2      :     2      :     4     :     1     :     2    :    1     :    2    :    1

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