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TLS Online TPP Program

#Question id: 40486

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

    Assertion (A): The thickness of the ozone layer is measured in Dobson Units (DU).

      Reason (R): The ozone layer is found in the Troposphere and protects us from harmful UV-B radiation.

      #Applied Microbiology
      1. Both (A) and (R) are true, and (R) is the correct explanation of (A)
      2. Both (A) and (R) are true, but (R) is not the correct explanation of (A).
      3. (A) is true, but (R) is false.
      4. (A) is false, but (R) is true
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      TLS Online TPP Program

      #Question id: 3651

      #Biochemistry

      __________________is spontaneous hydrolytic reaction that involves cleavage of the N-glycosylic bond between N-9 of the purine bases A and G and C-1 of the deoxyribose sugar and hence loss of purine bases from the DNA.
      TLS Online TPP Program

      #Question id: 3651

      #Botany

      __________________is spontaneous hydrolytic reaction that involves cleavage of the N-glycosylic bond between N-9 of the purine bases A and G and C-1 of the deoxyribose sugar and hence loss of purine bases from the DNA.
      TLS Online TPP Program

      #Question id: 3651

      #Zoology

      __________________is spontaneous hydrolytic reaction that involves cleavage of the N-glycosylic bond between N-9 of the purine bases A and G and C-1 of the deoxyribose sugar and hence loss of purine bases from the DNA.
      TLS Online TPP Program

      #Question id: 3651

      #Life Sciences

      __________________is spontaneous hydrolytic reaction that involves cleavage of the N-glycosylic bond between N-9 of the purine bases A and G and C-1 of the deoxyribose sugar and hence loss of purine bases from the DNA.
      TLS Online TPP Program

      #Question id: 3651

      #Environmental Science

      __________________is spontaneous hydrolytic reaction that involves cleavage of the N-glycosylic bond between N-9 of the purine bases A and G and C-1 of the deoxyribose sugar and hence loss of purine bases from the DNA.
      TLS Online TPP Program

      #Question id: 3654

      #Biochemistry

      Cleavage of the cyclobutane ring of pyrimidine dimers by ______________ restores the original DNA structure.