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(C) $DNA$ fingerprinting is a technique used to identify an individual based on the specificity of their $DNA$. This technique relies on the fact that

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Leucocytes

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(C) $DNA$ fingerprinting is a technique used to identify an individual based on the specificity of their $DNA$. This technique relies on the fact that an individual's $DNA$ contains specific nucleotide sequences that are unique to them. For $DNA$ profiling,cells must contain a nucleus to provide the necessary genetic material. Among the given options,leucocytes (white blood cells) are nucleated and thus contain $DNA$,whereas erythrocytes (red blood cells) in humans are enucleated (lack a nucleus) and platelets are cell fragments lacking a nucleus. Therefore,leucocytes are the ideal choice for identifying the criminal.

Blood stains are found at the site of a murder: If $DNA$ profiling technique is to be used for identifying the criminal,which of the following is ideal for use?

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