What is the single best definition of the most common form of antigen recognized by the T-cell receptor (TCR)

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#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)?

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#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:

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#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.

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#Question id: 15703

#Section 6: Plant, Animal and Microbial Biotechnology

Most commonly used carbon source in nutrient medium for plant tissue culture is

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#Question id: 15715

#Section 6: Plant, Animal and Microbial Biotechnology

In embryogenesis a type of structure with no vascular connection with the maternal callus tissue or explants is formed

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#Question id: 15726

#Section 6: Plant, Animal and Microbial Biotechnology

Tissues and cells cultured in a liquid medium produce culture of single cells and cells clumps of few to many cells