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#Question id: 2653


The sequence of the structural genes in the lac operon is

#XL - T Zoology
  1. lacA-lacZ-lacY

  2. lacZ-lacY-lacA

  3. lacZ-lacA-lacY

  4. lacA-lacY-lacZ


Answer:- Option(s): 2


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#Question id: 1602

#XL - S Microbiology

Following are some of the characteristics of MHC 1 and MHC 2 both , except 

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#Question id: 1603

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MHC is,

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#Question id: 1604

#XL - S Microbiology

Many viruses produce a protein immunoevasin that interferes with antigen presentation by MHC class I molecules. The immunoevasin interfere MHC presentation by

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#Question id: 1605

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inhibition of class I presentation,

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#Question id: 1606

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transporter associated with antigen processing(TAP) is ,

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#Question id: 1607

#XL - S Microbiology

Which of the following does NOT protect body surfaces?

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