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

Concept Questions :-

Gymnosperms: I
General Accounts of Gymnosperms:II
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Heterosporous ferns include both:

(1) Lycopodium and Equisetum

(2) Selaginella and Salvinia

(3) Psilotum and Phylloglossum

(4) Selaginella and Equisetum

Concept Questions :-

Pteridophytes: Heterospory
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The life cycle is not haplo-diplontic in:

(1) Bryophytes

(2) Pteridophytes

(3) Polysiphonia

(4) Fucus

Concept Questions :-

Life Cycle Patterns in Plants
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Asexaul reproduction by pear shaped biflagellate zoospores is seen in most:

(1) Green algae

(2) Brown algae

(3) Red algae

(4) Both (2) and (3)

Concept Questions :-

Pheophyceae:Brown Algae
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All the following pteriodophytes belong to the Class Pteropsida except:

(1) Dryopteris

(2) Pteris

(3) Selaginella

(4) Adiantum

Concept Questions :-

Classification of Pteridophytes: II
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Sexual reproduction by non-flagellated but similar in size gametes is seen in:

1. Chlamydomonas

2. Volvox

3. Spirogyra

4. Fucus

Concept Questions :-

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In mosses, the sex organs are seen in:

1. Protonema stage

2. Leafy stage

3. Capsule of the sporophyte

4. Seta of the sporophyte

Concept Questions :-

Bryophytes (Liverworts)
Bryophytes (Anthoceropsida)
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The 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

Concept Questions :-

Gymnosperms: I
General Accounts of Gymnosperms:II
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Both bryophytes and pteridophytes:

(1) are vascular cryptogams

(2) have a dominant sporophyte

(3) reproduce only sexually

(4) are haplo-diplontic

Concept Questions :-

Life Cycle Patterns in Plants
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The first group of terrestrial plants to get rid of the swimming sperm was the:

(1) Club mosses

(2) Ferns

(3) Gymnosperms

(4) Angiosperms

Concept Questions :-

General Accounts of Gymnosperms:II
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