Choose the incorrect statements from the following:
I. Gametophytes have free-living existence in gymnosperms.
II. Selaginella is heterosporous.
III. All seed bearing plants exhibit diplontic life cycle.
IV. In Pinus, the male and female cones are borne on different plants.
Choose the incorrect statements from the following:
I. Gametophytes have free-living existence in gymnosperms.
II. Selaginella is heterosporous.
III. All seed bearing plants exhibit diplontic life cycle.
IV. In Pinus, the male and female cones are borne on different plants.
The correct option is D Statements (I) & (IV)
In gymnosperms, the haploid gametophytes are dependent on sporophytes and do not have free-living existence. Hence statement I is incorrect.
Selaginella produces two distinct types of spores and is hence said to be heterosporous. Hence statement II is correct.
Gymnosperms and angiosperms are seed bearing plants. Both the groups exhibit diplointic life cycle. Hence statement III is correct.
In Pinus, the male and female cones are present on the same plant. Hence statement IV is incorrect.
In gymnosperms, the haploid gametophytes are dependent on sporophytes and do not have free-living existence. Hence statement I is incorrect.
Selaginella produces two distinct types of spores and is hence said to be heterosporous. Hence statement II is correct.
Gymnosperms and angiosperms are seed bearing plants. Both the groups exhibit diplointic life cycle. Hence statement III is correct.
In Pinus, the male and female cones are present on the same plant. Hence statement IV is incorrect.
