Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallu…

Question

Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage, B. Meiosis in spore mother cells, C. Fertilisation, D. Formation of archegonia and antheridia in gametophyte, E. Transfer of antherozoids to the archegonia in presence of water.

Choose the correct answer from the options given below:

1. A. B, A, D, E, C (Correct answer)
2. B. B, A, E, C, D
3. C. D, E, C, A, B
4. D. E, D, C, B, A

Correct Answer

Option A — B, A, D, E, C

Detailed Solution & Explanation

The correct answer is B, A, D, E, C.

Key Points

• The pteridophyte life cycle proceeds: B meiosis in spore mother cells $\to$ A prothallus (gametophyte) stage $\to$ D formation of archegonia and antheridia $\to$ E transfer of antherozoids to archegonia in presence of water $\to$ C fertilisation.
• Water is essential for the motile antherozoids to reach the archegonia.