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:

• A. B, A, E, C, D
• B. D, E, C, A, B
• C. E, D, C, B, A
• D. B, A, D, E, C

Hint:

In pteridophytes, water is essential for the transfer of antherozoids (sperm) to the archegonia (egg), which is a key step in fertilisation.

Answer 1

The Correct Option is D

The correct sequence for the life cycle of pteridophytes is: B. Meiosis in spore mother cells produces spores.
A. The spores germinate to form the prothallus stage.
D. The prothallus develops archegonia and antheridia (reproductive organs).
E. Antherozoids are transferred to the archegonia in the presence of water, enabling fertilisation.
C. Fertilisation occurs, resulting in the formation of a zygote. Thus, the correct order is B, A, D, E, C.