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#Question id: 2638


Which of these systems give the best mode for turning trp operon off?

#I Life Science/ Life Sciences Group – I-V
  1. Repressor

  2. Attenuator

  3. Repressor with a downstream poly A tail

  4. Repressor with an attenuator


Answer:- Option(s): 4


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3H2 + N2   2NH3

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#SCPH28 | Zoology

In chick development, the cell movement during gastrulation is called:

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