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STD 12 - 4. principal of inheritance and variation — BIOLOGY STD 12 Science — Question

Gujarat BoardEnglish MediumSTD 12 ScienceBIOLOGYSTD 12 - 4. principal of inheritance and variation1 Mark
MCQ
When dominant and recessive alleles express themselves together, it is called
  • A
    Dominance
  • ✓
    Co-dominance
  • C
    Amphidominance
  • D
    Pseudodominance
✓

Answer

Correct option: B.
Co-dominance
b
(b) Codominance is a condition in which heterozygote where both members of an allelic pair contribute to phenotype,

which is then a mixture of the phenotypic traits produced in either homozygous condition.

In cattle the cross of red $ \times $ white produces roan offspring whose coat consist of both red and white hair.

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