An unknown lipid is treated with a mixture of phospholipases A1, A2, C and D. Since no glycerol is formed after this treatment, the lipid is most likely

TLS Online TPP Program

#Question id: 1563

#Section 2: General Biology

A nonfunctional CD4 protein on a helper T cell would result in the helper T cell being unable to ________.

TLS Online TPP Program

#Question id: 1564

#Section 2: General Biology

When antibodies bind antigens, the clumping of antigens results from ________.

TLS Online TPP Program

#Question id: 1565

#Section 2: General Biology

Which of the following are symptoms of inflammation that might appear in such art?

TLS Online TPP Program

#Question id: 1566

#Section 2: General Biology

Histamines trigger dilation of nearby blood vessels, and increase in their permeability. Which of the signs of inflammation are therefore associated with histamine release?

TLS Online TPP Program

#Question id: 1567

#Section 2: General Biology

Which of the following cell types are responsible for initiating a secondary immune response?

TLS Online TPP Program

#Question id: 1568

#Section 2: General Biology

which one of these is not a characteristics  of B-cell?