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Why are all host cells not successfully transformed?

Answer and explanation

Correct answer: Because not all cells take up and stably maintain foreign DNA

Transformation efficiency is limited because not all host cells take up foreign DNA or maintain it stably. Selectable markers and screening are used to identify the successfully transformed cells. Option C is incorrect because some cells can take up foreign DNA when an appropriate transformation method is used. Exam tip: remember transformation as the entry and maintenance of foreign DNA in a host cell.

Related tags

Genetic EngineeringTransformation EfficiencyForeign DnaSelectable MarkersScreeningPrinciples Of BiotechnologyBiotechnologyClass 11 Mcq

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