Which of the following statements about t cells are true? choose all of the correct answers.

a. t cells express tcrs. t cells express bcrs.
b. t cells interact with antigens bound to class i mhc molecules on other cells.
c. t cells interact with antigens bount to class ii mhc molecules on other cells.
d. activation of t cells requires the membrane protein cd4.
e. activation of t cells requires the membrane protein cd8.

The correct statements are C helper T cells interact with antigens bound to class 2 MHC molecule other cells D Activation of helper T cells requires the membrane protein CD4.

Explanation:

T cells play an important role in cell mediated immunity.Tcells are of 2 types memory T cells and effector T cells.There are 2 types of effector T cells T helper cells and T cytotoxic cell.

  T helper interacts with foreign antigen fragment that is bound to class 2 MHC complex.

  T helper cells contain CD4+ Co receptors that recognizes the class 2 MHC bound foreign antigen.

answer: blah

explanation:

bc blah

the sugar-phosphate backbone forms the structural framework of nucleic acids, including dna and rna. this backbone is composed of alternating sugar and phosphate groups, and defines directionality of the molecule.