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: 14569

#Section 2: General Biology

A hot tub (approx. 104°F or 40°C) would most likely contain

TLS Online TPP Program

#Question id: 1861

#Section 2: General Biology

Paroxysmal nocturnal hemoglobulinuria results from deficiency in:

TLS Online TPP Program

#Question id: 10260

#Section 2: General Biology

Arrange F, C, O, N in the decreasing order of electronegativity

TLS Online TPP Program

#Question id: 3936

#Section 3: Genetics, Cellular and Molecular Biology

The large RNA-protein complex that processes introns and exons is called __.

TLS Online TPP Program

#Question id: 4152

#Section 3: Genetics, Cellular and Molecular Biology

The pathway for polypeptides exported from E. coli includes the following steps, which occur in what order for correct export?

1.  A chaperone, SecA, binds to the polypeptide.

2.  A chaperone, SecB, binds to the polypeptide.

3.  ATP is hydrolyzed by Sec A.

4.  SecA pushes 20 amino acids of the polypeptide into the translocation complex.