Water is a polar molecule: the oxygen atom with its unshared electrons carries a partial negative charge (δ−) of ___________, and the hydrogen atoms each carry a partial positive charge (δ+) of __________, where e is the charge of the electron.

TLS Online TPP Program

#Question id: 1705

#Section 2: General Biology

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

TLS Online TPP Program

#Question id: 1706

#Section 2: General Biology

Which of the following statements is the best example of a primary lymphoid organ?

TLS Online TPP Program

#Question id: 1707

#Section 2: General Biology

The thoracic duct:

TLS Online TPP Program

#Question id: 1708

#Section 2: General Biology

When antigen reaches a lymph node in a primed animal:

TLS Online TPP Program

#Question id: 1709

#Section 2: General Biology

What are the specialized cell type involved in the entry of lymphocytes into lymph nodes called?

TLS Online TPP Program

#Question id: 1790

#Section 2: General Biology

Which of the following is an example of an anti-apoptotic molecule?