Q120
General ScienceBiology
A pure red flower bearing plant is crossed with a pure white flower and the F₁ plant bears pink flowers. This is an example of
- a.pseudo dominance.
- b.dominance.
- c.epistasis.
- d.co-dominance.
Answer: (C) epistasis.
When F₁ shows an intermediate phenotype (pink) between two pure parental traits (red and white), this is Incomplete Dominance — neither allele completely masks the other. The source key gives (C) epistasis, but the correct term for this pattern is incomplete dominance. Note: co-dominance produces both colours simultaneously, not a blend.