Heterospory is the production of
sexual and asexual spores
large and small spores
haploid and diploid spores
diploid and tetraploid spores
B.
large and small spores
In some pteridophytes two types of spores are formed which differ significantly in their size and also in function. This phenomenon is called heterospory e.g., Selaginella and Marsilea etc.
Write a note on economic importance of algae and gymnosperms.
Both gymnosperms and angiosperms bear seeds, then why are they classified separately?
What is heterospory? Briefly comment on its significance. Give two examples.
Explain briefly the following terms with suitable examples:
(i) protonema
(ii) antheridium
(iii) archegonium
(iv) diplontic
(v) sporophyll
(vi) isogamy
Differentiate between the following:
Red algae and brown algae
Differentiate between the following:
liverworts and moss
Differentiate between the following:
homosporous and heterosporous pteridophyte
Differentiate between the following:
syngamy and triple fusion
How would you distinguish monocots from dicots?
Mock Test Series
