Assertion: Black rust of wheat is a hazardous disease which is ca

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 Multiple Choice QuestionsMultiple Choice Questions

91.

Select the option that contains all plants which produce non-endospermic seeds.

  • Gram, Pea, Bean, Groundnut

  • Castor, Peanut, Orchid, Wheat

  • Coconut, Walnut, Wheat, Gram

  • Castor, Maize, Coconut, Orchid


92.

Gerdy fibres are

  • ligament of neck 

  • ligament of ankles

  • ligament of palm

  • ligament of face


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93.

Assertion: Black rust of wheat is a hazardous disease which is caused by Puccinia fungus.

Reason: Aflatoxin is produced in the groundnut by the infection of a bacterium.

  • If both assertion and reason are true and reason is the correct explanation of assertion.

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false.

  • If both assertion and reason are false.


C.

If assertion is true but reason is false.

Stem rust, also known as black stem rust is caused by Puccinia graminis tritici, a fungus. It primarily infects wheat, but also causes minor infections on cultivars of barley and rye. Groundnut production is reduced by Aspergillus species, a fungus, which causes quantitative losses and produces highly toxic and carcinogenic chemical substance known as aflatoxins


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94.

Which of the following is the correct floral formula for the floral diagram given below?


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95.

Assertion : Storage of seeds at low temperature is possible.

Reason : Respiration and anzymatic activity of seeds are very high at low temperature.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion.

  • If assertion is true but reason is false

  • If both assertion and reason are false


96.

Assertion : Presence of pneumatophores is a special adaptation of hydrophytes.

Reason Pneumatophores are positively geotropic shoots that have lenticels and help in gaseous exchange.

  • If both assertion and reason are true and reason is the correct explanation of assertion

  • If both assertion and reason are true but reason is not the correct explanation of assertion

  • If assertion is true but reason is false

  • If both assertion and reason are false


97.

Match Column- I with Column - 2 and choose the correct option from below.
Column - I Column - II
A. Marginal placentation (i) Sunflower
B. Axile placentation (ii) Mustard
C. Parietal placentation (iii) Lemon
D. Basal placentation (iv) Pea

  • A-(iv), B - (iii), C- (ii), D- (i)

  • A -(iv), B- (iii), C- (i), D - (ii)

  • A-(iv), B-(i), C- (ii), D - (iii)

  • A - (iii), B- (iv), C- (ii), D - (i)


98.

Which of the following is correctly matched

  • Monstera- Fibrous root

  • Dahlin- Fasciculated root

  • Azadirachta- Adventitious root

  • Basil- Prop roots


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99.

Plants having the above given floral diagram are

  • leguminous

  • dicots

  • medicinal and perennial

  • having pinnately compound leaves


100.

Which of the following is the correct floral formula for the floral diagram given below?

  • BrEpi K5 or (5) C5 A()G(2 )

  • K(5) C5 A(5) G (2)

  • % K(5)C1 + 2 + (2) A(9) + 1 G1

  • P3 + 3 or (3 + 3)A 3 + 3 G (3)


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