If white colour flower of Antirrhinum sp. successfully crossed with the pink colour flower, what would be the proportion of white and pink color flowers in the next generation?
Answer & explanation
Correct answer: option 1
The correct answer is Option (1) → 1:1
In Antirrhinum, flower color shows incomplete dominance, meaning:
- RR = Red
- Rr = Pink (intermediate)
- rr = White
White flower (rr) is crossed with Pink flower (Rr)
rr × Rr
Now let's perform the Punnett square:
| R | r | |
| r | Rr (Pink) | rr (White) |
| r | Rr (Pink) | rr (White) |
Resulting Genotypes:
- 50% Rr (Pink)
- 50% rr (White)
- 50% White and 50% Pink flowers in the next generation.