Advertisements
Advertisements
प्रश्न
What is the phenotypic ratio in the F₂ generation from selfing heterozygous snapdragons (Rr × Rr) showing incomplete dominance?
विकल्प
2 Red : 2 White
3 Red : 1 White
1 Red : 1 Pink : 1 White
1 Red : 2 Pink : 1 White
MCQ
Advertisements
उत्तर
The F₂ phenotypic ratio is 1 Red : 2 Pink : 1 White. This 1:2:1 ratio is the defining characteristic of incomplete dominance and differs fundamentally from the 3:1 phenotypic ratio observed in complete dominance. The ratio directly corresponds to the genotypes: 1 RR (red), 2 Rr (pink), and 1 rr (white). Notably, the phenotypic ratio equals the genotypic ratio in incomplete dominance, which is NOT the case in complete dominance.
shaalaa.com
क्या इस प्रश्न या उत्तर में कोई त्रुटि है?
