Question

You discover a dog suffering from an autoimmune response. On further investigation, you find that the cells of various tissues are loosely arranged and do not have characteristic shapes, and the animal is prone to hemorrhaging because of poor blood clotting. Based on these results, the target of the autoimmune response is most likely to be

A) fibronectins.
B) laminins.
C) extensins.
D) pectins.
E) elastins.

Answer 1

The autoimmune response in the dog affecting tissue structure and blood clotting is most likely targeting fibronectin, a glycoprotein essential for cell adhesion and tissue repair. Option c.

Step-by-step explanation:

The target of the autoimmune response most likely to be affected in a dog suffering from an autoimmune response involving tissues with loosely arranged cells, characteristic shape loss, and poor blood clotting is fibronectin. Fibronectin is an important glycoprotein involved cell adhesion and migration, which are essential for maintaining the integrity and shape of tissues. Additionally, fibronectin interacts with the extracellular matrix and plays a role in tissue repair, including blood clotting, by guiding cell and tissue differentiation during the repair phase.