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#Question id: 2659


The correct option regarding the lac operon in E.coli from the following is

#SCPH06 I Botany
  1. Lac operon is switched on in the absence of lactose

  2. Lac repressor binds to the lac promoter

  3. β-galactosidase is the only enzyme produced in large quantities when lac operon is turned on

  4. lac operon messenger RNA is a polycistronic mRNA


Answer:- Option(s): 4


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#Question id: 8940

#SCPH28 | Zoology

Which of the following is a correct association of an animal germ layer with the tissues or organs to which it gives rise?

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#Question id: 8941

#SCPH06 I Botany

You are trying to identify an organism. It is an animal, but it does not have nerve or muscle tissue. It is neither diploblastic nor triploblastic. It is probably a

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#Question id: 8941

#SCPH28 | Zoology

You are trying to identify an organism. It is an animal, but it does not have nerve or muscle tissue. It is neither diploblastic nor triploblastic. It is probably a

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#Question id: 8942

#SCPH06 I Botany

Which group contains diploblastic organisms?

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#Question id: 8942

#SCPH28 | Zoology

Which group contains diploblastic organisms?

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#Question id: 8943

#SCPH06 I Botany

Which group consists of deuterostomes?

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