NEET2020BotanyPlant KingdomActual
Which of the following statements is incorrect about gymnosperms?
Options
- AThey are heterosporous
- BMale and female gametophytes are free living
- CMost of them have narrow leaves with thick cuticle
- DTheir seeds are not covered
Correct answer
B. Male and female gametophytes are free living
Step-by-step solution
The gametophyte generation is multicellular, haploid ( n ) very small in size, does not have conducting tissues and is dependent upon the sporophyte. The sporophytes of all gymnosperms are heterosporous since they produce two types of spores, namely the microspores and megaspores. The microspores are produced in structures, called microsporangia which are produced by modified fertile leaves called microsporophylls. The microsporophylls are compactly arranged in male cones or male strobili. In a microsporangium ther