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TLS Online TPP Program

#Question id: 678

Which is not true about β-sheets?

#SCPH28 | Zoology

  1. The side-chains of all amino acids point to the same side of the sheet.

  2. The polypeptide chains in the sheet are nearly fully extended.

  3. The range of allowed phi and psi angles is broader than for those in the α-helix.

  4. In antiparallel sheets the hydrogen bonds between adjacent strands are nearly perpendicular to the backbones of the strands.

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TLS Online TPP Program

#Question id: 951

#SCPH28 | Zoology

The changes that occur in cells that lead to its death are called ________.
TLS Online TPP Program

#Question id: 1684

#SCPH01 Biochemistry

What are the molecules mediating signal transduction following antigen binding to cell surface immunoglobulin on a B-cell called?
TLS Online TPP Program

#Question id: 3636

#SCPH12 I Genetics

A man with type A blood group marries a woman with type A blood group. Their first child has type O blood. What is the genotype of the Man, proportion of his gametes are expected to contain the IA allele, and probability that their next child will have type A blood respectively:
TLS Online TPP Program

#Question id: 20028

#SCPH06 I Botany

Myeloma is a cancer of the plasma cells, human a patient with myeloma, these patient produces 
TLS Online TPP Program

#Question id: 359

#SCPH01 Biochemistry

What is the concentration of OH− in a solution with an H+ concentration of 1.3 × 10^−4 M?