TLS Online TPP Program

#Question id: 561


Enzyme X exhibits maximum activity at pH = 6.9.  X shows a fairly sharp decrease in its activity when the pH goes much lower than 6.4.  One likely interpretation of this pH activity is that:

#Section 2: General Biology
  1. a Glu residue on the enzyme is involved in the reaction.

  2. a His residue on the enzyme is involved in the reaction.

  3. the enzyme has a metallic cofactor.

  4. the enzyme is found in gastric secretions

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TLS Online TPP Program

#Question id: 15697

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

Which of the following does not describe PAM matrices?

TLS Online TPP Program

#Question id: 15698

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

Which of the following does not describe global alignment algorithm?

TLS Online TPP Program

#Question id: 15699

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

The PROSITE pattern representing the conserved sequence motif for a new family of AMP binding protein is [LIVMFY]-X(2)-[STG]-[STAG]-G-[ST]. You are given a sequence of a 15-amino acid stretch starting from the first residue of the motif. Which one of the following proteins is likely to have AMP binding function?

TLS Online TPP Program

#Question id: 15700

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

In a sequence database of a given size, which of the following expressions is likely to retrieve more matches (X means any amino acid; any of the residues in square brackets can occupy that position)?

TLS Online TPP Program

#Question id: 15701

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

In a sequence logo of the type given below, the sizes of the letters are proportional to the:

TLS Online TPP Program

#Question id: 15702

#Section 6: Plant, Animal and Microbial Biotechnology

Following are few sterilization techniques and materials used in plant tissue culture. Identify the correct combinations.