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Question
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?
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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Solution
The correct option is C Leucocytes
DNA profiling techniques of blood require DNA sample and we know that DNA is present in the nucleus of cells.
Option A is incorrect as serum is the light yellow liquid left after blood clotting and does not contain any blood cells.
Option B is incorrect as erythrocytes are enucleated cells and hence lack DNA.
Option D is incorrect as significantly platelets are small fragments of megakaryocytes and do not have the nucleus.
Option C is correct as leucocytes are large cells with nucleus which in turn house DNA that can be used as the sample for DNA profiling of the blood stains.
DNA profiling techniques of blood require DNA sample and we know that DNA is present in the nucleus of cells.
Option A is incorrect as serum is the light yellow liquid left after blood clotting and does not contain any blood cells.
Option B is incorrect as erythrocytes are enucleated cells and hence lack DNA.
Option D is incorrect as significantly platelets are small fragments of megakaryocytes and do not have the nucleus.
Option C is correct as leucocytes are large cells with nucleus which in turn house DNA that can be used as the sample for DNA profiling of the blood stains.
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