Which type of hypersensitivity reaction involves IgE antibodies and mast lls?
Type I hypersensitivity reactions, such as allergies, involve IgE antibodies binding to mast lls, leading to histamine release. This follows from NCERT principle where relation explains outcome clearly for students.
Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function, Topic: Structural organization and physiology.