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#Question id: 5760


The fluctuation test of Luria and Delbruck (studying resistance to bacteriophge T1 infection) established that

#XL - R Botany
  1. T1 phage was a mutagen.

  2. Mutations could arise prior to the time they were selected

  3. The mutation rate varies greatly from experiment to experiment.

  4. In E. coli the number of mutants per clone was relatively constant.


Answer:- Option(s): 3


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#Question id: 3263

#XL - T Zoology

From an evolutionary point of view, plant tendrils derived from leaves and those derived from stems are examples of

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#Question id: 3429

#XL - T Zoology

Which of the following is a behavioral pattern that results from a proximate cause?

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#Question id: 3430

#XL - T Zoology

The proximate causes of behavior are interactions with the environment, but behavior is ultimately shaped by

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#Question id: 3431

#XL - T Zoology

In the territorial behavior of the stickleback fish, the red belly of one male elicits attack from another male by functioning as

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#Question id: 3432

#XL - T Zoology

Which of the following statements is (are) true of fixed action patterns?

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#Question id: 3433

#XL - T Zoology

Which of the following is true about imprinting?

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