Multiple Choice Questions

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The edible dry fruit 'chigoza' is

  • fruit of Cycas

  • fruit of Pinus gerardiana

  • seed of Cycas

  • seed of Pinus gerardiana


C.

seed of Cycas

Chilgoza is a seed of Pinus gerardiana.

Gymnosperms are the plants in which ovary is absent so, there is production of naked seeds, hence, fruits are absent in gymnosperms.

Also, seeds of Cycas are not edible.


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Source of commercial chewing gum latex is

  • Hevea brasiliensis

  • Carica papaya

  • Ficus elastica

  • Achras sapota


In coconut, the liquid endosperm is formed because

  • Karyokinesis is not followed by cytokinesis

  • Karyokinesis is followed by cytokinesis

  • Formation of the liquid endosperm is not dependent upon karyokinesis and cytokinesis

  •  None of the above


Water bloom is generally caused by

  • green algae

  • blue- green algae

  • bacteria

  • Hydrilla


In which one of the family formations of endosperm doesn’t take place?

  • Orchidaceae

  • Cactaceae

  • Ranunculaceae

  • Malvaceae


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Bacteria are considered plant because they

  • are green in colour

  • have rigid cell wall

  • have chlorophyll

  • have stomata


Which one of the following is not a flower?

  • Shoe-flower

  • Sunflower

  • Larkspur

  • Water lily


Indusium is found in

  • algae

  • ferns

  • moss

  • Cycas


Read the following statements and choose the correct option.

I. Leptosporangiate development of sporangium is found in all membersPteropsida.

II. Seed habit is shown by sellaginella.

III. Gnetum leaves are monomorphic and pinnately compound.

IV. Sporic meiosis is found in VolvolxChalmydomonas and Ulothrix.

Choose the correct option.

  • I and IV

  • I and II

  • I, II and IV

  • All of these


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Which of the following is not the feature of gymnosperms?

  • parallel venation

  • perennial plants

  • distinct branches (long and short branches)

  • xylem with vessels


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