NEET Previous Year Question
Consider the following four statements and specify whether they are correct or wrong.
(A) The sporophyte in liverworts is more elaborate than that in mosses.
(B) Salvinia is heterosporous.
(C) The life-cycle in all seed-bearing plants is diplontic.
(D) In Pinus, the male and female cones are born on different trees.
The two wrong statements together are
Topic: NEET PYQ
Answer: B. Full step-by-step solution below.
- A(A) and (C)
- B(A) and (D)
- C(B) and (C)
- D(A) and (B)
Correct answer: B
Solution
(b) (A) WRONG: In bryophytes, the sporophyte of mosses is more elaborate and complex than that of liverworts. Mosses often have a well-developed capsule with a peristome mechanism for spore dispersal, whereas liverwort sporophytes are relatively simpler.(B) CORRECT: Salvinia is an aquatic fern that is heterosporous, meaning it produces two distinct types of spores: large megaspores and small microspores.
(C) CORRECT: All seed-bearing plants (both gymnosperms and angiosperms) follow a diplontic life cycle, where the diploid sporophyte is the dominant, photosynthetic, and independent phase.
(D) WRONG: Pinus is a monoecious plant, meaning both male and female cones are borne on the same tree, typically on different branches. In contrast, Cycas is dioecious, with male and female structures on separate trees.
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