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Which option correctly pairs restriction enzyme with product?

Answer and explanation

Correct answer: EcoRI-sticky ends

The direct answer is A: EcoRI produces sticky ends. Restriction enzymes are proteins that recognize particular DNA sequences and cut the DNA backbone. EcoRI is a well-known restriction enzyme that cuts a specific site and can leave compatible sticky ends. Therefore the enzyme-product pair in A is scientifically appropriate. Option B is wrong because chlorophyll is a photosynthetic pigment made by cells, not a product made by EcoRI. Option C is wrong because glucose is a sugar and is not produced when BamHI cuts DNA. Option D is wrong because a cell wall is a structural layer, not the product of HindIII digestion. The word “product” here means the immediate result of enzyme action on DNA, not something made by metabolism. A DNA cut may generate fragments and sticky or blunt ends, depending on the enzyme. Memory cue: restriction enzymes cut DNA; they do not make food pigments, sugars, or cell structures.

Related tags

EcoriSticky EndsEnzyme Product

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