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Question

Match column-I with column-II and identify the correct option.
Column-IColumn-IIA.Gene therapyI.RhizobiumB.BiofertilizerII.Cry geneC.Bt cottonIII.SCIDD.HumulinIV.Diabetes

A
A – II; B – I; C – IV; D – III
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B
A – III; B – I; C – II; D – IV
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C
A – II; B – III; C – I; D – IV
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D
A – IV; B – I; C – II; D – III
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Solution

The correct option is B A – III; B – I; C – II; D – IV
A: Gene therapy is used to treat diseases caused due to malfunctioning genes. SCID is such a disorder.
B: Biofertilizer is a substance which contains microorganisms that promotes growth of plants by increasing the supply or availability of primary nutrients to the host plant. Microorganisms such as Rhizobium, Azotobacter, Azospirillum and blue green algae (BGA) are used as biofertilizers.
C: Bt cotton is a genetically modified variety of cotton containing 'cry' gene. 'Cry' genes encode a toxin called crystal proteins. When insects feed the cotton plant the Cry toxins act on their gut proteins and kill them.
D: Humulin is human insulin hormone produced by genetic engineering. It is structurally identical to insulin made by the human pancreas and is used to treat diabetes.

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