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TLS Online TPP Program

#Question id: 1759

What is the major long-term source of a foreign antigen in the body?

#SCPH05 I Biotechnology

  1. Anti-idiotype

  2. Complexes on the surface of follicular dendritic cells

  3. Antigen bound to the surface of B-cells

  4. Antigenic peptides in the groove of MHC molecules

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TLS Online TPP Program

#Question id: 14140

#I Life Science/ Life Sciences Group – I-V

In sequence alignment by BLAST, each word from query sequence is typically _______ residues for protein sequences and _______ residues for DNA sequences.
TLS Online TPP Program

#Question id: 18765

#SCPH01 Biochemistry

Which of the following is not used for generating an optimal alignment of two nucleotide sequences
TLS Online TPP Program

#Question id: 12932

#SCPH06 I Botany

Why mRNA cannot be used directly in cloning?
TLS Online TPP Program

#Question id: 5247

#SCPH06 I Botany

Which of the following is not a protein or group of proteins required for conjugation to occur?
TLS Online TPP Program

#Question id: 371

#SCPH05 I Biotechnology

How many milliliters of a 2.0 M solution of boric acid must be added to 600 mL of a solution of 10 mM sodium borate in order for the pH to be 9.45? (pKa of boric acid = 9.24)