Question

Which of the following is characteristic of antibodies? Group of answer choices composed of heavy and light polypeptide chains three binding sites per antibody monomer incapable of being transferred from one person to another carbohydrate structure

Answer 1

Antibodies are composed of heavy and light polypeptide chains and have a Y-shaped structure with two antigen-binding sites. They are glycoproteins with carbohydrate structures and while certain types can be transferred from one person to another, this is not common.

Step-by-step explanation:

Among the characteristics of antibodies, they are composed of heavy and light polypeptide chains, which together form the Y-shaped structure typical of these immune system molecules. Each antibody molecule has two antigen-binding sites at the ends of its 'Y' structure, contrary to the notion of having three binding sites. These binding sites are formed by the variable domains of both the heavy and light chains, highlighting the importance of the light chains in antigen recognition. Additionally, antibodies do have a carbohydrate structure as they are glycoproteins, consisting of polypeptide and carbohydrate components. While certain types of antibodies can be transferred from one person to another, such as from mother to child through breastfeeding, in the context of this question, it is likely referring to the fact that antibodies, in general, are not routinely transferred between people as a means of conferring immunity.

Answer 2

Composed of heavy and light polypeptide chains.

Step-by-step explanation:

Antibodies are generated by the immune system mostly by the plasma cells in acknowledgment of the existence of any foreign substance, known as an antigen via the fragment antigen-binding (Fab) variable region.

Antibodies are Y-shaped in a structure that contains 4 polypeptides 2 heavy chains and 2 light chains. This structure of antibody helps to reach their dual functions one is antigen binding and another is biological activity mediation.