Tag: diseases and hygiene

The process of creating a GM crop can produce many changes in the natural functioning of the plant's genome. Native genes can be mutated, deleted, permanently turned on or off and may change their levels of protein expression. This increasing the levels of an existing protein or even producing a completely new and unknown protein within the crop can act as an allergen in consumers. Hence, foods derived from genetically modified crops are required to be tested for possible allergic reactions in people.

• An allergic reaction occurs due to the hypersensitivity of the immune system to a harmless substance known as an allergen.
• Antibodies are produced by the B-lymphocyte cells which destroy the allergens.
  
• Destruction of allergens by the antibodies causes the release of a chemical substance into the bloodstream called histamine. 
• The release of histamine in a large amount causes swelling of body tissues (inflammation), itching, enlargement of blood vessels and causes bronchospasm.
• So, the correct answer is 'Histamines'.

• Sting of bee causes allergy.
  
• When a bee stings it releases bee venom into the human body which triggers allergic reactions.
• The bee venom contains proteins which affect the skin cells and triggers the immune system to produce antibodies called Immunoglobulin that results in pain and swelling at the site of the sting.
• So, the correct answer is 'Bee'.

• Perennial allergy can be defined as a chronic allergic reaction to house dust.
• House dust contains mould and fungal spores, fibres of the fabric, pet dander and insect particles.
• These allergies occur throughout the year hence, they are called perennial allergy.
• So, the correct answer is 'Perennial'.

i) Chenopodium and Amaranthus also are known as lambs quarters are belonged to family Amaranthaceae and are a major cause of pollen allergies are also considered as weeds or invasive species.

Hay fever is also known as seasonal allergy or allergic rhinitis is look like cold and symptoms are also similar like:-

•  Wooden floors are used in-house to reduce dust.
  
•  Wooden floors do not trap dust, pollen particles, pet dander and other allergens compared to others.
• It helps allergy sufferers and keeps the indoor air quality healthier.
  
• So, the correct answer is 'True'.

• Allergy occurring during certain times of the year are called seasonal allergy.
  
• Perennial allergy is present throughout the year whereas, a seasonal allergy occurs only during a particular time of the year.
  
• So, the correct answer is 'False'.

• The tingling sensation of mouth is a symptom is an oral allergy.
  
• It is caused by allergic reactions to certain fruits, vegetables, nuts, medications and pollen etc.
• So, the correct answer is 'False'.