TLS Online TPP Program

#Question id: 139


 A sequence of amino acids with a relatively high hydropathy is very likely to function by

#Section 2: General Biology
  1. being at the active site of an enzyme.

  2. being embedded in a cell membrane.

  3. making a protein soluble. 

  4. being on the protein surface.

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TLS Online TPP Program

#Question id: 4740

#Section 3: Genetics, Cellular and Molecular Biology

Following metabolic pathway for synthesis of anthocyanin product ? Which of the following cross produced all purple phenotype in their progeny ?

TLS Online TPP Program

#Question id: 2265

#Section 3: Genetics, Cellular and Molecular Biology

Passage through pores in the nuclear envelope is restricted primarily to

TLS Online TPP Program

#Question id: 3018

#Section 2: General Biology

In the growth curve of a bacteria population, the bacteria are rapidly increasing in number in the

TLS Online TPP Program

#Question id: 14182

#Section 5: Bioprocess Engineering and Process Biotechnology

Aerobic degradation of benzoic acid by a mixed culture of microorganisms can be represented by the following reaction.


                Determine the yield coefficients YX/O2

TLS Online TPP Program

#Question id: 13090

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

To express a yeast gene in E. coli, your task is to design a strategy to insert the yeast gene into the bacterial plasmid. Below is a map of the area of the yeast genome surrounding the gene in which you are interested.

 
The distance between each tick mark placed on the line above is 100 bases in length
Below are the enzymes you can use, with their specific cut sites shown 5’-XXXXXX-3’ 3’-XXXXXX-5’

 
The plasmid is 5,000 bases long and the two farthest restriction enzyme sites are 200 bases apart. The plasmid has an ampicillin resistance gene somewhere on the plasmid distal from the restriction cut sites.
                              
You do the digestion of the insert and the vector and then ligate the two digestions together. You then transform the ligation into bacteria and select for ampicillin resistance. You get three colonies on your transformation plate. You isolate plasmid from each one and cut each plasmid with the enzyme XbaI. You then run your three digestions on an agarose gel and see the following patterns of bands. Describe what each plasmid actually was that was contained in each of the three colonies.
 
What is the Colony 3’s plasmid is;