The given diagram shows:
1. An alga that lacks flagellated cells
2. A liverwort
3. A heterosporous pteridophyte
4. A gymnosperm with non-motile sperms
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one is correct about heterosporous pteridophytes?
1. Microspore and megaspores develop into the male and the female gametophytes respectively.
2. The female gametophyte are retained on the parent sporophyte for a variable period.
3. The development of the zygote into the embryo takes place within the female gametophyte.
4. All
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn bryophytes and pteriodophytes, transport of male gametes requires
1. insects
2. birds
3. water
4. wind
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following is heterosporous?
(1) Dryopteris
(2) Salvinia
(3) Adiantum
(4) Equisetum
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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 & BiologyIn ferns, fertilization does not involve:
1. Archegonia
2. Water
3. Pollen tube
4. Flagellated antherozoids
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn heterosporous members of the pteridophyta
1 Development of embryo takes place within the female gametophyte
2 Zygote produces a multicellular and undifferentiated sporophyte
3 Gametophyte is monoecious
4 Spore germination is exosporic
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhich one of the following is considered important in the development of seed habit?
(1) Dependent sporophyte
(2) Heterospory
(3) Haplontic life cycle
(4) Free-living gametophyte
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyIn pteridophytes, gametophyte that develops in the homosporous species is usually
1. Monoecious and has events, precursor to the seed habit.
2. Dioecious and does not lead to seed habit.
3. Monoecious and does not lead to seed habit.
4. Dioecious and has events, precursor to the seed habit.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe spreading of living pteridophyte is limited and is restricted to narrow geographical region because of
1. Growth requirements of gametophyte (cool, damp and shady places).
2. Requirement of water for fertilisation.
3. Absence of stomata in leaf and absence of vascular tissue.
4. Both 1. and 2..
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology