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question

The checkered pattern of pigeons is controlled by a dominant gene C; plain color is determined by the recessive allele c. Red color is controlled by a dominant gene B, and brown color by the recessive allele b. Complete aPunnett square for adihybridcross involving a homozygous checkered red bird and a plain brown bird. For this cross, show the expected phenotypes, genotypes, genotypic frequencies and phenotypic ratios for the F_2 generation. P: CCBB × ccbb Gametes: (CB) (cb) F_1 × F_1 CcBb × CcBb Gametes (CB) (Cb) (cB) (cb) (CB) CCBB CCBb CcBB CcBb (Cb) CCBb CCbb CcBb Ccbb (cB) CcBB CcBb ccBB ccBb (cb) CcBb Ccbb ccBb Ccbb

category

biology

options

  1. Phenotypic ratio: checkered red 6, checkered brown 2, plain red 6, plain brown 2
  2. Phenotypic ratio: checkered red 8, checkered brown 4, plain red 0, plain brown 4
  3. Phenotypic ratio: checkered red 9, checkered brown 3, plain red 3, plain brown 1
  4. Phenotypic ratio: checkered red 1, checkered brown 3, plain red 9, plain brown 3
  5. Phenotypic ratio: checkered red 3, checkered brown 9, plain red 1, plain brown 3
  6. Phenotypic ratio: checkered red 4, checkered brown 4, plain red 4, plain brown 4
  7. Phenotypic ratio: checkered red 12, checkered brown 2, plain red 2, plain brown 0
  8. Phenotypic ratio: checkered red 5, checkered brown 3, plain red 2, plain brown 6
  9. Phenotypic ratio: checkered red 7, checkered brown 5, plain red 1, plain brown 3
  10. Phenotypic ratio: checkered red 2, checkered brown 6, plain red 3, plain brown 1

src

stemez-Genetics

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