Which statement regarding the genetic predisposition to allergies is MOST accurate?
A single gene mutation is usually responsible for most allergic conditions.
Genetic factors play a minimal role in the development of allergies; environmental factors are primarily responsible.
Allergies are strictly inherited following Mendelian patterns of inheritance.
Multiple genes interacting with environmental factors contribute to the development of allergies.
Related Questions
A patient experiences an allergic reaction after being stung by a bee. Which of the following cell types is NOT directly involved in the immediate hypersensitivity response?
Mast cells
Basophils
Eosinophils
Cytotoxic T lymphocytes (CTLs)
A person experiences severe difficulty breathing, swelling of the throat, and a drop in blood pressure shortly after being stung by a bee. This is most likely:
A localized allergic reaction
Hay fever
Anaphylaxis
A mild food allergy
A localized allergic skin reaction characterized by redness, swelling, and itching is called:
Eczema
Hives
Psoriasis
Dermatitis
What type of immune cell releases histamine during an allergic reaction?
Macrophages
Neutrophils
Mast cells
Lymphocytes
Which substance is released in response to an allergen and causes symptoms like sneezing and runny nose?
Adrenaline
Insulin
Histamine
Cortisol
Which of these is NOT a common food allergen?
Peanuts
Milk
Eggs
Lettuce
Which of the following is an example of an autoimmune disease that shares some similarities with allergic reactions in terms of immune system activation?
Cystic fibrosis
Sickle cell anemia
Rheumatoid arthritis
Hemophilia
Which of the following is a common symptom of an allergic reaction?
Fever
Weight gain
Skin rash
Increased appetite
Which of the following is NOT a typical characteristic of allergens that contributes to their ability to elicit an IgE-mediated immune response?
Low molecular weight, typically less than 50 kDa.
High solubility and stability.
Presence of glycosylation or other post-translational modifications.
High molecular weight, typically greater than 500 kDa.
Which of the following is NOT a common symptom of an allergic reaction?
Sneezing and runny nose
Skin rash and itching
Wheezing and difficulty breathing
Increased blood pressure
