Question

The number of pollen grains, produced by each head inflorescence of family Asteraceae having 10 actinomorphic flowers (if each anther produces 20 pollen grains), are:

• A. 300
• B. 1000
• C. 800
• D. 500

Answer 1

The correct option is B 1000

Each flower has 5 anthers and, therefore there are 50 anthers
Each anther produces 20 pollen grains, so the total number of pollen grains will be 10 $\times$ 5 $\times$ 20 = 1000