Multiple Choice Questions

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Which one of the following is considered important in the development of seed habit?

  • Dependent sporophyte

  • Heterospory

  • Haplontic life cycle

  • Haplontic life cycle


B.

Heterospory

Heterospory is the production of spores of two different sizes and of two different sizes and of two different development patterns. Heterospory is an expression sex determining spores of the plant. It is the most important evolutionary development in the vascular plants because it has ultimately lead to seed development, eg, Selaginella, Salvinia,Azolla, etc.

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Which one o0f the following is monoecious?

  • Marchantia

  • Cycas

  • Pinus

  • Pinus

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Vegetative propagation in mint occurs by 

  • runner 

  • offset

  • rhizome

  • rhizome

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Examine the figure A, B, C, and D. In which one of the four options, all the items A, B, C and D are correct.

  • A

    B

    C

    D

    Chara

    Marchantia

    Fucus

    Pinus

  • A

    B

    C

    D

    Equisetum

    Ginkgo

    Selaginella

    Lycopodium

  • A

    B

    C

    D

    Selaginella

    Equisetum

    Salvinia

    Ginkgo

  • A

    B

    C

    D

    Selaginella

    Equisetum

    Salvinia

    Ginkgo

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The scutellum observed in a grain of Wheat or maize is comparable to which part of the seed in other monocotyledons?

  • Cotyledon

  • Endosperm

  • Aleurone layer

  • Aleurone layer

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Which one of the following is heterosporous? 

  • Dryopteris 

  • Salvinia

  • Adiantum

  • Adiantum

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The correct sequence of plants in a hydrosere is

  • Oak → Lantana → scirpus→Pistia→Hydrilla→Volvox

  • Volvox → Hydrilla → Pistia → Scirpus → Lantana → Oak

  • Pista → Volvox → Scirpus → Hydrilla → Oak → Lantana

  • Pista → Volvox → Scirpus → Hydrilla → Oak → Lantana

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Which one of the following is a vascular cryptogam?

  • Equisetum 

  • Ginkgo

  • Marchantia

  • Marchantia

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Mannitol is the stored food in of

  • Chara

  • Porphyra

  • Fucus

  • Fucus

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Vegetative propagation in Pisitia occurs by 

  • stolen

  • offset

  • runner

  • runner

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