Multiple Choice Questions

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Which is social foresting species

  • Leucaena leucocephala

  • Tectona grandis

  • Mangifera indica

  • Rosa indica


A.

Leucaena leucocephala

Leucaena leucocephala is commonly known as subabool. It is a very fast growing leguminous plant and therefore is commonly used as social foresting species.


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Which one has the largest species variety in India

  • Wheat

  • Maize

  • Rice

  • Potato


Which one is not produced by aquaculture?

  • oyster

  • silkworm

  • singhara

  • frog


Match Column - I with Column -II and select the correct option from given codes.

   Column-I                 Column- II

A. Brassica                (i) Himgiri

B. Okra                     (ii) Pusa Komal

C. Wheat                  (iii) Pusa Gaurav

D. Cowpea                (iv) Pusa Sawani

  • A- (iii), B- (iv), C-(1), D- (ii)

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

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

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


Assertion: Neurospora is commonly called water mould.

Reason: It belongs to basidiomycetes fungi.

  • 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.


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Golden rice is a transgenic crop of the future with the following improved trait

  • high lysine (essential amino acid) content

  • insect resistance

  • high protein content

  • high vitamin A content


Assertion: Somatic hybridisation is a process where protoplasts of two desired plants can be fused to develop improved plants.

Reason: Cross breeding can also induce variability

  • 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.


Match column I with column II and select the correct option from codes given below.

Column I Column II
Brassica Himgiri
Okra Pusa Komal
Wheat Pusa Gaurav
Cowpea Pusa Sawani

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

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

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

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


Assertion: Inbreeding increases homozygosity, thus exposes harmful recessive genes, which are eliminated by selection.

Reason: Continued inbreeding reduces fertility and productivity.

  • 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


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Why is vivipary an undesirable character for annual crop plants ?

  • It reduces the vigour of plant

  • The seeds cannot be stored under normal conditions for the next season

  • The seeds exhibit long dormancy

  • It adversely affects the fertility of the plant


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