Answers

2014-06-08T13:49:50+05:30
Detectives used hair and blood to find criminals by using the DNA found in the hair or blood. This is because DNA has a unique code which is specific for every human being. ...
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2014-06-08T13:57:59+05:30
Detectives can find out criminals from a single drop of blood or hair because our blood contains DNA which can be identified by detectives through some chemical procedures and match them with other people.and our hair too contain DNA
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