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If linear DNA has one restriction site how many fragments will be formed by that enzyme?

Answer and explanation

Correct answer: Two

In linear DNA, the enzyme makes one cut at its single restriction site. One cut divides one linear DNA molecule into two separate fragments, so the correct answer is two. The option ‘one’ would apply if no cut were made. Exam tip: for linear DNA, number of fragments = number of cuts + 1.

Related tags

Restriction EnzymesLinear DnaRestriction SitesDna FragmentsRestriction MappingPrinciples Of BiotechnologyBiotechnologyClass 11 Mcq

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