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Which of the following statements is incorrect about gymnosperms?
A true statement for Ulothrix:
The gametophyte is not an independent, free-living generation in:
Pinus seeds cannot germinate and establish without fungal association. This is because:
From an evolutionary point of view, retention of the female gametophyte with developing young embryo on the parent sporophyte for some time, is first observed in:
Which one is wrongly matched?
An example of colonial alga is:
Examine the figures A, B, C and D. In which one of the four options all the items, A, B, C and D are correct?
Conifers are adapted to tolerate extreme environmental conditions because of?
Phylogenetic system of classification is based on:
Which one of the following structures is haploid in its ploidy level?
Identify the pair of heterosporous pteridophytes among the following :
Which one of the following is the characteristic feature of gymnosperms?
Which one of the following is considered important in the development of seed habit?
Which one of the following is heterosporous?
In bryophytes, the gemmae help in which one of the following?
Which one of the following acids is a derivative of carotenoids?
Which classes of algae possess pigment fucoxanthin and pigment phycoerythrin, respectively?
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.
If you are asked to classify the various algae into distinct groups, which of the following characters you should choose?