The correct sequence of the formation of pollen grains is -
(A) Sporogenous tissue
(B) Formation of microspore
(C) Microspore tetrad formed by meiotic divisions
(D) Pollen grains develop from microspores
Choose the correct answer from the options given below:
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → (A), (C), (B), (D)
(A) Sporogenous tissue — first. In a young anther, compactly arranged sporogenous tissue fills the centre of each microsporangium.
(C) Microspore tetrad formed by meiotic divisions — second. Each cell of this tissue acts as a microspore mother cell and divides by meiosis into a cluster of four cells, the tetrad.
(B) Formation of microspore — third. As the anther matures, the tetrads separate into single microspores.
(D) Pollen grains develop from microspores — last. Each microspore develops into a pollen grain.
NCERT Extract:
Stamen, Microsporangium and Pollen Grain – …
