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Biology GK · all questions

Plant Kindom
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The vascular bundle is said to be open if

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Which among the following one lays eggs and does not produce young ones directly?

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The chief elements of conduction in gymnosperms and pteridophytes are

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From which of following groups does the whale belongs?

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Where are the Eucalyptus trees found in abundance?

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After bringing out of water fishes die because

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In Oomycetes, the antheridium when develops on a separate hyphae is described as

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Redness in apple is due to

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Fish generally breathe through

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Match List-I with List-II and select the correct answer:
List-I (Stomata types) List-II (Cell arrangements)
a. Allium type 1. Guard cells are not surrounded by any recognisable subsidiary cells
b. Hordeum type 2. Guard cells are dumbell-shaped and are surrounded by two subsidiary cells
c. Rhoeo type 3. Guard cells are surrounded by two lateral and two terminal subsidiary cells
d. Commelina type 4. Guard cells are surrounded by four lateral and two terminal subsidiary cells

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According to Hutchinson's system, which of the following begins with the most primitive order magnoliales and ends in verbenales?

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In Anthoceros, the gametophyte bears cavities which are often occupied by which of the following algae?

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Aerating organs in the form of organised breaks also occur in the lower cortex of

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Quinine which is a major drug for malaria is obtained from

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Which of the following is the product of fermentation of sugars and starches by Clostridium acetobutilicum?

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The phellogen in the lenticel region is characterised by

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Who among the following for the first time ascertained the existence of sex and role of pollen grains in plants and mentioned them in De Sexu Plantarum Epistola?

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The double reduction in the number of chromosomes in the ascus is termed as

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The outer tangential wall of the epidermal cells is usually coated with waxy substance called

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In a group of RNA tumour viruses, called leukoviruses or rousviruses, the genetic material is

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