All the following differentiate gymnosperms from the higher cryptogams except:
(1) Presence of an independent green gametophyte
(2) development of an ovule
(3) Formation of the pollen tube
(4) Presence of cambium
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyHeterosporous pteridophyte includes both:
1. Lycopodium and Equisetum
2. Selaginella and Salvinia
3. Psilotum and Phylloglossum
4. Selaginella and Equisetum
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe life cycle is not haplo-diplontic in:
1. Bryophytes
2. Pteridophytes
3. Polysiphonia
4. Fucus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAsexaul reproduction by pear shaped biflagellate zoospores is seen in most:
1. Green algae
2. Brown algae
3. Red algae
4. Both (2) and (3)
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAll the following pteridophytes belong to the Class Pteropsida except:
1. Dryopteris
2. Pteris
3. Selaginella
4. Adiantum
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologySexual reproduction by non-flagellated but similar in size gametes is seen in:
1. Chlamydomonas
2. Volvox
3. Spirogyra
4. Fucus
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn mosses, the sex organs are seen in:
1. Protonema stage
2. Leafy stage
3. Capsule of the sporophyte
4. Seta of the sporophyte
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe features seen in the gymnosperm Cycas include:
I. Coralloid roots
II. Unbranched stems
III. Pinnate persistent leaves for a few years
IV. Male cones and megasporophyllys borne on same plant
1. I and II only
2. I and IV only
3. I, II and III only
4. I, II, III, and IV
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyBoth bryophytes and pteridophytes:
1. are vascular cryptogams
2. have a dominant sporophyte
3. reproduce only sexually
4. are haplo-diplontic
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe first group of terrestrial plants to get rid of the swimming sperm was the:
(1) Club mosses
(2) Ferns
(3) Gymnosperms
(4) Angiosperms
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology