Question

Select the mismatch

• A. Cycas - Dioecious
• B. Salvinia - Heterosporous
• C. Equisetum - Homosporous
• D. Pinus - Dioecious

Answer 1

The Correct Option is D

To solve this question, we need to understand the terms used in the options and identify the mismatch based on biological classification concepts.

1. Cycas - Dioecious: Cycas is a genus of plants under Gymnosperms. The term "dioecious" refers to species that have separate male and female plants. In Cycas, male and female cones are produced on separate plants, making it dioecious. Hence, this statement is correct.
2. Salvinia - Heterosporous: Salvinia is a genus of ferns. Heterospory is the production of two different types of spores: microspores (male) and megaspores (female). Salvinia exhibits heterospory since it produces these two different types of spores. Hence, this statement is correct.
3. Equisetum - Homosporous: Equisetum, commonly known as horsetails, is known for producing only one type of spore, which makes it homosporous. Hence, this statement is correct.
4. Pinus - Dioecious: Pinus, another genus under Gymnosperms, is not dioecious. Pinus is actually monoecious, meaning it has both male and female cones on the same plant. This attribute is characteristic of conifers like pines. Hence, this statement is incorrect.

The mismatch in the options is Pinus - Dioecious because Pinus is monoecious, not dioecious.