In gymnosperms, the endosperm is formed, before fertilization. In both conifers and grasses seeds are produced from ovules. Xylem tracheid and pollen tubes are present in both conifers and grasses.
Conifers differ from grasses in the:
Held on 30 Apr 2006 · Verified 9 Jul 2026.
formation of endosperm before fertilization
production of seeds from ovules
lack of xylem tracheids
absence of pollen tubes
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Match List-I with List-II. $\begin{array}{|l|l|l|l|}\hline & \text{List-I} & & \text{List-II} \\\hline \text{A}. & \text{Pteridophyte} & \text{(I)} & \text{Salvia} \\\hline \text{B.} & \text{Bryophyte} & \text{(II)} & \text{Ginkgo} \\\hline \text{C.} & \text{Angiosperm} & \text{(III)} & \text{Polytrichum} \\\hline \text{D.} & \text{Gymnosperm} & \text{(IV)} & \text{Salvinia} \\\hline\end{array}$ Choose the option with all correct matches.
Which one of the following is the characteristic feature of gymnosperms?
Given below are the stages in the life cycle of pteridophytes. Arrange the following stages in the correct sequence. A. Prothallus stage B. Meiosis in spore mother cells C. Fertilisation D. Formation of archegonia and antheridia in gametophyte. E. Transfer of antherozoids to the archegonia in presence of water. Choose the correct answer from the options given below:
The correct sequence of events in the life cycle of bryophytes is A. Fusion of antherozoid with egg. B. Attachment of gametophyte to substratum. C. Reduction division to produce haploid spores. D. Formation of sporophyte. E. Release of antherozoids into water. Choose the correct answer from the options given below :
In bryophytes, the gemmae help in which one of the following?
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