551. Microsporangia of cyas are present on the leaves

A Marginal
B Adaxial
C Abaxial
D Lateral
Answer :   Abaxial
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552. Which one of the following is common to multicellular fungi, filamentous algae and protonema of mosses

A Diplontic life cycle
B Members of kingdom plantae
C Mode of Nutrition
D Multiplication by fragmentation
Answer :   Diplontic life cycle
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553. Sex-organ in Riccia develop on

A Dorsal surface in acropetal order
B Dorsal surface in basipetal order
C Ventral surface in acropetal order
D Ventral surface in basipetal order
Answer :   Dorsal surface in acropetal order
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554. Fossils of Williamsonia were fist discovered by

A Williamson
B Seward
C Birbal sahani
D Kashyap
Answer :   Birbal sahani
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555. The sex organs that develop towards the rhizoids of tern prothallus are called as

A Archegonia
B Antheridia
C None of above
D Sporangia
Answer :   Antheridia
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556. Life cycle of Ectocarpus and Fucus respectively are:

A Diplontic, Haplodiplontic
B Haplodiplontic, Diplontic
C Haplodiplontic, Haplontic
D Haplontic, Diplontic
Answer :   Haplodiplontic, Diplontic
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557. Protenema stage is found in

A Fern
B Mosses
C Liverworts
D Fungi
Answer :   Mosses
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558. Sporophylls are photosynthetic in

A Gymnosperm
B Angiosperm
C Bryophyta
D Pteridophyta
Answer :   Pteridophyta
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559. Fertile cells are not enclosed by sterile cells in the group

A Thallophyta
B Sepmatophyta
C Pteridophyta
D Bryophta
Answer :   Thallophyta
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560. Most gymnosperms have

A Both archegonia and antheridia
B Antheridia but no archegonia
C Archegonia but no antheridia
D No antheridia or archegonia
Answer :   Archegonia but no antheridia
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