The number of pollen grains, produced by each head inflorescence of family Asteraceae which has 10 actinomorphic flowers and if each anther produces 20 pollen grains are

300

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800

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500

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1000

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Solution

The correct option is B 1000
In family Asteraceae, the flowers are arranged in disc florets. Each flower contains 5 anthers.
Therefore, 10 flowers will have 10 x 5 = 50 anthers.
Pollen grains in 1 anther are 20
Therefore, pollen grains in 50 anthers are 50 x 20 = 1000
So, the correct answer is '1000'.

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The number of pollen grains, produced by each head inflorescence of family Asteraceae which has 10 actinomorphic flowers and if each anther produces 20 pollen grains are

The correct option is B 1000In family Asteraceae, the flowers are arranged in disc florets. Each flower contains 5 anthers.Therefore, 10 flowers will have 10 x 5 = 50 anthers.Pollen grains in 1 anther are 20Therefore, pollen grains in 50 anthers are 50 x 20 = 1000So, the correct answer is '1000'.