Multiple choice

When a pink snapdragon is crossed with another pink snapdragon, red and white coloured flowers are obtained along with pink ones. In what ratio is the three coloured flowers obtained?

  1. 1 : 3 : 1

  2. 1 : 2 : 1

  3. 9 : 3 : 1

  4. 1 : 1 : 1

  5. 9 : 6 : 1

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The ratio 1 red : 2 pink : 1 white is obtained due to incomplete dominance. In this case, the genotype is 1 RR : 2 Rr : 1 rr.