Question

In which of the following characters Selaginella differs from Pteris (fern)?

• A. Absence of seed
• B. Absence of vessels in xylem
• C. Need water for fertilization
• D. Heterosporous condition

Answer 1

The correct option is D Heterosporous condition

The majority of the pteridophytes produce only one kind of spores in sporangia and the plants are called homosporous. For example, Nephrolepis, Lycopodium, Equisetum and ferns, the condition is said to be homospory.

Heterosporous condition (produce two kinds of spores i.e., megaspore and microspore) is found in Selaginella.

So, the correct answer is option D.