The basic structure of an antibody is a tetrapeptide structure. The tetrapeptide structure consists of:

Which of the following white blood cells plays a key role in the innate immune system, is typically one of the first responders to infection, and has primary and secondary granules in its cytoplasm: 

Which of the following white blood cells are professional antigen presenting cells (APC)? (select all that apply)

Which of the following is an example of how we naturally acquire immunity?

White Blood Cells stem from Hematopoietic Stem Cells, which are produced by which organ: 

Classify the following characteristics as either describing MHC I or MHC II proteins. 

A cytokine having effects described as ‘endocrine’ denotes a cytokine which:

What part of pancreas is anterior to Aorta and SMA and posterior to the stomach?

What is Number 5 referred to the image above

What are the two small sesamoid bones located behind the condyles of the femur?