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[A]: Typhoid carriers may be cured by re...

[A]: Typhoid carriers may be cured by remov- ing their spleen.
[R]: Typhoid bacteria remain concentrated in it

A

If both A and R are true and R is the correct explanation of A

B

If both A and R are true but R is not the correct explanation of A

C

If A is true and R is false

D

If both A and R are false

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The correct Answer is:
D
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[A] : When apical bud is removed, the next axial bud begins to grow out. [R]: High concentration of auxin in the apical bud suppresses the growth of next axial bud.

Assertion (A) : The order of a reaction may be defined as the sum of the powers to which the concentration terms are raised in order to determine the rate of reaction gives the total order of reactions. Reason (R) : The number of molecules whose concentrations determine the ratio of reaction at a given temperature is called order to the reaction.

Assertion : Houseflies acts as mechanical carriers in amoebic dysentery. Reason : A moebiasis typhoid and ascariasis are transmitted by contaminated food and water

Diseases like typhoid, cholera etc may be caused due to

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TRUEMAN BIOLOGY-Applications of Biology -ASSERTION AND REASON
  1. [A]: Winged bean is widely cultivated throughout India. [R]: The ...

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  2. Assertion : Age sex structure of human population in countries like Fr...

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  3. [A]: Decrease in mortality would result in de- creased population grow...

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  4. Assertion. Death is regarded as the most regulatory process on earth. ...

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  5. [A]: The ideas of Thomas Malthus are more applicable today. [R]: ...

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  6. [A]: Since 1960 s, there is a dramatic in- crease in human population ...

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  7. [A]: Oral contraceptive pills are meant for family planning purpose. ...

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  8. [A]: Environment resistance does not limit population growth. [R]...

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  9. [A]: Growth curve is the graphic representa- tion of the total growth ...

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  10. [A]: Demography is the study of human popu- lation growth & production...

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  11. Assertion : Interferons are a type of antibodies produced by body cell...

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  12. Assertion (A): Organ transplantation patients are given immunosuppress...

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  13. Assertion : Persons sufffering from haemophilia fail to produce blood ...

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  14. Assertion . Senescence is the time when age associated defects are man...

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  15. Assetion: In recombinant DNA technology, human genes are often transfe...

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  16. Assertion : Agrobacterium tumefaciens is popular in genetic engineerin...

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  17. [A]: Typhoid carriers may be cured by remov- ing their spleen. [R...

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  18. [A]: Foot and mouth disease causes ulcer- ation in mouth and hoof clef...

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  19. [A] : A blood dialyser is an artificial kidney which can sustain kidne...

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  20. Assertion. Somaclonal variations occur in tissue culture processes. ...

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