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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