The E. coli LacZ will be used as a reporter gene and the expression of the...

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Biology

  1. The E. coli LacZ will be used as a reporter gene andthe expression of the LacZ gene product will be detected by theenzymatic cleavage of the compound X-gal producing blue stainingwithin the embryo. Why was an E. coli LacZ gene used as areporter gene?

  2. Why is there a Drosophila weak basal promoter locatedon the P[lacZ] enhancer-trap element?

  3. The E. coli LacZ will be used as a reporter gene andthe expression of the LacZ gene product will be detected by theenzymatic cleavage of the compound X-gal producing blue stainingwithin the embryo. If blue staining is observed, what does thatindicate about the P[lacZ] enhancer-trap element withinthe Drosophila embryo?
  4. What classes of genes will be studied in this experiment?
  5. When you examine your prepared slides you observe that someembryos do not show a staining pattern, give a technical reason forthis observation. Give a biological reason for thisobservation.

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3.9 Ratings (456 Votes)
Answer The lacZ was used as a reporter gene because this allows visual selection of transformants which can be easily analysed to identify the recombinants ie the cells with our gene of interest Also this    See Answer
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