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TLS Online TPP Program

#Question id: 1674

Which of the following statements is TRUE of receptor editing?

#Section 2: General Biology

  1. Has been described for antibody but not TCR

  2. Is associated with reexpression of RAG-1 in germinal centers

  3. Can involve V genes which are 3′ of the initially selected V gene

  4. Involves the S (switch) sequences

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TLS Online TPP Program

#Question id: 11801

#Section 6: Plant, Animal and Microbial Biotechnology

Which one of the following compound most commonly transported in sieve elements of the phloem?
TLS Online TPP Program

#Question id: 14425

#Section 5: Bioprocess Engineering and Process Biotechnology

Calculate the total number of cells suspended in a final volume of 5 ml, considering that the cells were diluted 1: 2 before counting and the number of cells counted with the hemocytometer was 400 .......... 10^7
TLS Online TPP Program

#Question id: 18955

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

(i) (RFLPs), (ii) (RAPDs), (iii) (VNTR) DNA, and (iv) (SSRs) are the examples of
TLS Online TPP Program

#Question id: 1976

#Section 2: General Biology

The MHC is important in a T cellʹs ability to
TLS Online TPP Program

#Question id: 59

#Section 2: General Biology

Nitrogen (N) normally forms three covalent bonds with a valence of five. However, ammonium has four covalent bonds, each to a different hydrogen (H) atom (H has a valence of one). What do you predict to be the charge on ammonium?