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Biology Test - ...

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  • Question 1
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    Directions For Questions

    Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).

    Assertion (A) : Polymerase chain reaction is used in DNA amplification.

    Reason (R) : The ampicillin resistant gene is used as a selectable marker to check transformation.

    ...view full instructions

    In the light of the above statements, choose the correct answer from the options given below :

  • Question 2
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    'Golden rice' developed through transgene approach is enriched with

  • Question 3
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    Given figure represents the maturation of pro-insulin into insulin. Identify the product A.

  • Question 4
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    Which of the following equations correctly represents verhulst-Pearl logistic growth?

  • Question 5
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    Which of the following adaptations are examples of plant defenses against herbivores?

  • Question 6
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    Small fish get stuck near the bottom of a shark and derive their nutrition from it? This kind of association is called

  • Question 7
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    Directions For Questions

    Identify the correct statements:

    A. Detrivores perform fragmentation.

    B. The humus is further degraded by some microbes during mineralization.

    C. Water soluble inorganic nutrients go down into the soil and get precipitated by a process called leaching.

    D. The detritus food chain begins with living organisms.

    E. Earthworms break down detritus into smaller particles by a process called catabolism.

    ...view full instructions

    Choose the correct answer from the options given below:

  • Question 8
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    In the equation GPP − R= NPP

    GPP is Gross Primary Productivity

    NPP is Net Primary Productivity

    R here is ________.

  • Question 9
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    What layer of egg cell prevents entry of other sperms?

  • Question 10
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    The ability of a cell to differentiate is called ______

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