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HindII is considered what type of biological tool?

Answer and explanation

Correct answer: A restriction enzyme

Direct answer: Option C, a restriction enzyme. HindII is a bacterial restriction endonuclease, a biological tool used to cut DNA at a particular recognition sequence. The name “Hind” comes from Haemophilus influenzae, and “II” identifies the enzyme type or form. Its important action is not hormonal, nutritional, or coloring; it recognizes a defined DNA sequence and cuts the phosphodiester backbone. Option A, a hormone, is wrong because hormones are chemical messengers in organisms, whereas HindII acts on DNA. Option B, a vitamin, is wrong because vitamins are nutrients needed in small amounts and do not specifically cut DNA. Option C is correct because restriction enzymes are molecular scissors used in genetic engineering. Option D, a pigment, is wrong because pigments produce or reflect color and do not cut DNA. Memory cue: restriction enzyme means “DNA-cutting enzyme.”

Related tags

HindiiRestriction EnzymesDna

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