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. Chlamydomanas

2. Volvox

3. Spirogyra

4. Fuccus

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

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Which one is a wrong statement?

(1) Archegonia are found in Bryophyta, Pteridophyta and Gymnosperms.

(2) Mucor has biflagellate zoospores.

(3) Haploid endosperm is typical feature of gymnosperm.

(4) Brown algae have chlorophyll-a and c, and fucoxanthin.

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Read the following five statements (I to V) and select the option with all correct statements.

I. Mosses and lichens are the first organisms to colonise a bare rock.

II. Selaginella is a homosporous pteridophyte.

III. Coralloid roots in Cycas have VAM.

IV. main plant body in bryophytes is gametophytic, whereas in pteridophytes it is sporophytic.

V. In gymnosperms, male and female gametophytes are present within sporangia located on sporophyte.

(1) I, III and IV

(2) II, III and IV

(3) I, IV and V

(4) II, III and V

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Zygotic meiosis is characteristic of

(1) Marchantia

(2) Fucus

(3) Funaria

(4) Chlamydomonas

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