2. Solved Papers
  3. Uttarakhand PMT

Uttarakhand PMT Uttarakhand PMT Solved Paper-2010

  • question_answer
    During   transcription   holoenzyme   RNA polymerase binds to a DNA sequence and the DNA assumes a saddle-like structure at that point. What is that sequence called?

    A)  CAAT box      

    B)  GGTT box

    C)  AAAT box      

    D)  TATA box

    Correct Answer: D

    Solution :

    TATA box is present in eukaryotic promoter region. It has a resemblance with pribnow box of prokaryotes. TATA box was identified by Dr. Hogness and so, it is also called as Hogness box. It is a 7 bp long region located 20 bp upstream to the start point. During the process of transcription, the RNA polymerase holoenzyme which has a core unit and a sigma factor for proper initiation of transcription binds to TATA box due to which DNA assumes a saddle-like structure.


You need to login to perform this action.
You will be redirected in 3 sec spinner