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: 13037

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

Which of the following proteins will be most far away from the positively charged electrode during isoelectric focusing in a buffer with pH of 5?
TLS Online TPP Program

#Question id: 13038

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

Please arrange the following steps about ELIZA (Enzyme-linked immunosorbent assay) in chronological order
i. incubate with antibody-enzyme complex that binds primary antibody
ii. coat surface with antigen, block unoccupied sites with nonspecific protein
iii. add substrate, formation of colored product indicates presence of specific antigen
iv. incubate with primary antibody against specific antigen
TLS Online TPP Program

#Question id: 13039

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

 Which of the following is incorrect about a microarray?
TLS Online TPP Program

#Question id: 13040

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

Which of the following is incorrect about Oligonucleotide Design in A microarray? 
TLS Online TPP Program

#Question id: 13041

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

Which of the following is incorrect about Data Collection? 
TLS Online TPP Program

#Question id: 13042

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

For analyzing DNA sequences, two techniques have been developed, one is _________ method frequently termed_________, involving the enzymatic synthesis of DNA and stopping the synthesis at specific nucleotides. While another technique, the __________ method of DNA sequencing developed by ___________ is often used for sequencing small fragments of DNA.