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The white blood cells (WBCs) involved in inflammatory reactions are
Some students were not involved in the strike. If the above statement is true, which of the following conclusions is/are logically necessary? 1. Some who were involved in the strike were students. 2. No student was involved in the strike. 3. At least one student was involved in the strike. 4. Some who were not involved in the strike were students.
The two pericyclic reactions successively involved in the thermal transformation given below are
Basics of Organic Reaction Mechanism mcq question image
In the following question, there is a sentence of which some parts have been jumbled up. You are required to rearrange these parts which are labelled P, Q, R and S to produce the correct sentence. Choose the proper sequence and mark the corresponding option.  Researchers found that allergic reactions are brought about (P)  in the bloodstream (Q) in the 1940s, (R) by the liberation of small quantities of a substance called histamine (S)   The correct sequence should be
A tattoo is a permanent mark or design made on your skin with pigments inserted through pricks into the skin's top layer. Typically, the tattoo artist uses a hand-held machine that acts much like a sewing machine, with one or more needles piercing the skin repeatedly. With every puncture, the needles insert tiny ink droplets. Tattoos carry the risk of creating skin diseases, allergic reactions, and further MRI complications.Since tattoo instruments come in contact with blood and bodily fluids, diseases may be transmitted if the instruments are used on more than one person without being sterilised. However, infection from tattooing in clean and modern tattoo studios employing single-use needles is rare. Assuming the information in the above paragraph is true, which of the following is true?
Which of the following allergic reactions results in decreased blood pressure and shortness of breath?
Which of the following type of drug abolish the effects of histamine released in the body and prevent allergic reactions ?
Which cell evokes allergic reactions and inflammation?
Which of these cells are associated with allergic reactions?
Which antibody initiates allergic reactions?