Practice Questions

  1. Home
  2. Free Resources
  3. Practice Questions
  4. 12604
TLS Online TPP Program

#Question id: 10794

Which one of the following characteristics of about lignin is incorrect?

#Section 6: Plant, Animal and Microbial Biotechnology
  1.  Most abundant organic substance in plants and a highly branched polymer of phenylpropanoid groups
  2. lignins are involved in plant–animal interactions, helping to attract animals to flowers and fruit by providing visual and olfactory signals
  3. lignin has significant protective functions in plants, Its physical toughness deters feeding by animals, and its chemical durability makes it relatively indigestible to herbivores

  4. Lignin is generally formed from three different phenylpropanoid alcohols: coniferyl, coumaryl, and sinapyl, alcohols which are synthesized from phenylalanine

More Questions
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.