Which of the following statement is incorrect?

Easy

A

Tetrahedral tetrad of microspores is formed by simultaneous cytokinesis.
B

Pollen grains of Chenopodium and Amaranthus cause bronchial affliction.
C

Pollen viability of pea and rice is 30 minutes and several months respectively.
D

Pollen viability to some extent depends on the prevailing temperature and humidity.

Solution

In some cereals such as rice and wheat, pollen grains lose viability within 30 minutes of their release, and in some members of Rosaceae, Leguminoseae and Solanaceae, they maintain viability for months.

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