TLS Online TPP Program

#Question id: 295


Which of the following pairs of amino acids could form a covalent disulfide bond to link two polypeptides together in a multi-subunit protein complex

#Section 2: General Biology
  1. Glu -His

  2. Cys - Cys

  3. Ser - Thr

  4. Val – Ala

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TLS Online TPP Program

#Question id: 19023

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

Which one of the following tools can reliably establish an evolutionary link between two proteins and align them even if they share very low degree of sequence similarity? 

TLS Online TPP Program

#Question id: 3294

#Section 3: Genetics, Cellular and Molecular Biology

Which one of these processes describes bottleneck effect?

TLS Online TPP Program

#Question id: 5244

#Section 3: Genetics, Cellular and Molecular Biology

Transformation can used to map bacterial gene, which of the following statement is correct?

TLS Online TPP Program

#Question id: 14297

#Section 5: Bioprocess Engineering and Process Biotechnology

A two-stage chemostat system is used for production of secondary metabolite. The volume of each reactor is 0.5 m3; the flow rate of feed is 50 l h- 1. Mycelial growth occurs in the first reactor; the second reactor is used for product synthesis. The concentration of substrate in the feed is 10 gl-1. Kinetic and yield parameters for the organism are:

                                                            

Assume that product synthesis is negligible in the first reactor and growth is negligible in the second reactor. Determine substrate concentrations entering the second reactor.

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TLS Online TPP Program

#Question id: 3746

#Section 3: Genetics, Cellular and Molecular Biology

During recombination in E. coli, ________ recognize(s) regions of sequence similarity and promote(s) strand invasion, while ________ bind(s) to a Holliday junction promoting strand migration.