TLS Online TPP Program

#Question id: 18846


For an application where you require a sample of your target protein at high purity, what would be a good purification strategy? Assume that your starting point is E. coli cells in which the target protein fused to an affinity tag has been over-expressed.

#Part-A Aptitude & General Biotechnology
  1. Affinity chromatography (AC) followed by size exclusion chromatography (SEC)
  2. AC only
  3. AC followed by ion-exchange (IEX) followed by SEC
  4. AC followed by IEX, followed by hydrophobic interaction (HIC) and then SEC
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TLS Online TPP Program

#Question id: 14135

#Part-B Specialized Branches in Biotechnology

Which of the following statement is correct about PAM matrix? 

TLS Online TPP Program

#Question id: 14135

#Part-A Aptitude & General Biotechnology

Which of the following statement is correct about PAM matrix? 

TLS Online TPP Program

#Question id: 14136

#Part-B Specialized Branches in Biotechnology

Which of the following statement is incorrect about global alignment? 
(A) Global alignment is based on the Needleman–Wunsch algorithm.
(B) In Global alignment algorithm, an optimal alignment is obtained over the entire lengths of the two sequences.
(C) It is only suitable for aligning two closely related sequences that are of the same length.
(D) GAP is a web-based pairwise global alignment program.

TLS Online TPP Program

#Question id: 14136

#Part-A Aptitude & General Biotechnology

Which of the following statement is incorrect about global alignment? 
(A) Global alignment is based on the Needleman–Wunsch algorithm.
(B) In Global alignment algorithm, an optimal alignment is obtained over the entire lengths of the two sequences.
(C) It is only suitable for aligning two closely related sequences that are of the same length.
(D) GAP is a web-based pairwise global alignment program.

TLS Online TPP Program

#Question id: 14137

#Part-B Specialized Branches in Biotechnology

Consider the following alignment of two DNA sequences:
                            AGTAAC
                            AA_ _AC

Assuming an affine gap scoring scheme of an identity matrix for substitution, a gap initiation penalty of 1 and a gap extension penalty of 0.1, the score of the alignment is _________

TLS Online TPP Program

#Question id: 14137

#Part-A Aptitude & General Biotechnology

Consider the following alignment of two DNA sequences:
                            AGTAAC
                            AA_ _AC

Assuming an affine gap scoring scheme of an identity matrix for substitution, a gap initiation penalty of 1 and a gap extension penalty of 0.1, the score of the alignment is _________