A prokaryotic autotrophic nitrogen fixing symbiont is found in

(1) Cycas

(2) Cicer

(3) Pisum

(4) Alnus

 

Subtopic:  Examples of Gymnosperms |
 84%
From NCERT
NEET - 2011
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Male and female gametophytes are independent and free-living in

(1) mustard

(2) castor

(3) Pinus

(4) Sphagnum

Subtopic:  Bryophytes |
 72%
From NCERT
NEET - 2010
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Which one of the following  has haplontic life cycle?

(1) Funaria

(2) Polytrichum

(3) Ustilago

(4) Wheat

Subtopic:  Life Cycle Patterns in Plants (OLD NCERT) |
 51%
NEET - 2009
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Phylogenetic system of classification is based on

(1) evolutionary relationships

(2) morphological features

(3) chemical constituents

(4) floral characters

Subtopic:  Classification System: I | Classification System |
 93%
From NCERT
NEET - 2009
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Which one of the following is a vascular cryptogam?

(1) Equisetum

(2) Ginkgo

(3) Marchantia

(4) Cedrus

Subtopic:  Classification of Pteridophytes: I | Classification of Pteridophytes |
 60%
NEET - 2009
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Which 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

Subtopic:  Pteridophytes: Heterospory |
 69%
From NCERT
NEET - 2009
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In which one of the following, the male and female gametophytes don't have free-living independent existence?

(1) Pteris

(2) Funaria

(3) Polytrichum

(4) Cedrus

Subtopic:  General Accounts of Gymnosperms: II | Gymnosperms |
 76%
From NCERT
NEET - 2008
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Which one of the following is heterosporous?

(1) Dryopteris

(2) Salvinia

(3) Adiantum

(4) Equisetum

Subtopic:  Pteridophytes: Heterospory |
 89%
From NCERT
NEET - 2008
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Select one of the following pairs of important features distinguishing Gnetum from Cycas and Pinus and showing affinities with angiosperms

(1) absence of resin duct and leaf venation

(2) presence of vessel elements and absence of archegonia

(3) perianth and two integuments

(4) embryo development and apical meristem

Subtopic:  General Accounts of Gymnosperms: II | Gymnosperms |
 67%
NEET - 2008
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Flagellated male gametes are present in all the three of which one of the following sets?

(1) Anthoceros, Funaria and Spirogyra

(2) Zygnema, Saprolegnia and Hydrilla

(3) Fucus, Marsilea and Calotropis

(4) Riccia, Dryopteris and Cycas

Subtopic:  Algae |
NEET - 2007
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