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NEET UG BIOLOGY MCQ: MICROBES IN HUMAN WELFARE
1
Hard
1 of 1
Understanding
+4 | -1
Assertion: An organ transplant patient if not
provided with cyclosporin A may reject the
transplanted organ.
Reason: Cyclosporin A inhibits activation of T-cells
and interferes with destruction of non-self cells.
provided with cyclosporin A may reject the
transplanted organ.
Reason: Cyclosporin A inhibits activation of T-cells
and interferes with destruction of non-self cells.
View answer and explanation
Correct option: A
If both Assertion and Reason are true and
Reason is the correct explanation of Assertion
Reason is the correct explanation of Assertion
Option A is correct because Cyclosporin A is used to prevent organ rejection by inhibiting T-cell activation, which interferes with the destruction of non-self cells.
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Assertion (A): Streptokinase acts as a clot-buster.
Reason (R): Streptokinase is given to patients who have undergone myocardial infarction. The bacterium that commonly lives in animal and human intestine is Consider the following statements I. Ladybirds and dragonflies are used to get rid of aphids and mosquitoes II. The bacteria Bacillus thuringiensis (Bt) are used to control caterpillar III. Trichoderma sp. free living fungi, are present in root ecosystems where they act against several plant pathogens IV. Rhizobium is a symbiotic bacterium that lives in the stem of legumes Which of the statements given above are correct? Which of the following serve as biofertilizer in paddy fields? Methanogens, growing anaerobically on cellulosic material, produce Clot buster agent streptokinase is produced by
Reason (R): Streptokinase is given to patients who have undergone myocardial infarction. The bacterium that commonly lives in animal and human intestine is Consider the following statements I. Ladybirds and dragonflies are used to get rid of aphids and mosquitoes II. The bacteria Bacillus thuringiensis (Bt) are used to control caterpillar III. Trichoderma sp. free living fungi, are present in root ecosystems where they act against several plant pathogens IV. Rhizobium is a symbiotic bacterium that lives in the stem of legumes Which of the statements given above are correct? Which of the following serve as biofertilizer in paddy fields? Methanogens, growing anaerobically on cellulosic material, produce Clot buster agent streptokinase is produced by