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TLS Online TPP Program

#Question id: 17274

which of the following statement is incorrect about PSI-BLAST?

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology
  1. The main feature of PSI-BLAST is that profiles are constructed automatically and are fine-tuned in each successive cycle. 
  2. PSI-BLAST employs a weighting scheme in the profile construction in each iteration to increase sensitivity.
  3. To increase sensitivity of PSI-BLAST, it uses pseudocounts to provide extra weight to unobserved residues to make the profile more inclusive.
  4. None of the above.
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TLS Online TPP Program

#Question id: 2122

#Section 2: General Biology

The inner (plasma) membrane of E. coli is about 75% lipid and 25% protein by weight.  How many molecules of membrane lipid are there for each molecule of protein?  (Assume that the average protein is Mr 50,000 and the average lipid is 750.)
TLS Online TPP Program

#Question id: 1541

#Section 2: General Biology

Nonphagocytic cell of immune system,
TLS Online TPP Program

#Question id: 2119

#Section 3: Genetics, Cellular and Molecular Biology

A sodium-potassium pump:
TLS Online TPP Program

#Question id: 4757

#Section 3: Genetics, Cellular and Molecular Biology

The newborn baby of a mother having blood group O, Rh+ and father having blood group AB, Rh-, got mixed with other babies in the hospital. The baby with which of the following blood groups is not confirmable to be of the said couple?

(i) AB, Rh+                                                    (ii) O, Rh+

(iii) A, Rh+                                         (iv)  B, Rh+
TLS Online TPP Program

#Question id: 1694

#Section 2: General Biology

Antigen processing for presentation by MHC class II molecules involves: