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Helen [10]
3 years ago
12

11) Whatever its ultimate cause(s), the Cambrian explosion is a prime example of

Biology
1 answer:
Serhud [2]3 years ago
6 0
C. Adaptive radiation
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DNA samples should be stored in an airtight containers to prevent contamination true or false
Aleksandr-060686 [28]

Answer: True

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DNA is a biological evidence. It is a heredity material which is present in all organisms on earth. The DNA in humans can be taken as sample from nails, bones, blood, skin, hair and other sources.

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The DNA evidence has applicability as a potent evidence in the court of law. Thus utmost care should be taken to preserve it's integrity until it is analysed and presented in the court of law.

Thus the DNA evidence should be collected and preserved in airtight containers so as to prevent the entry of airborne pathogens like bacteria, virus these can contaminate the sample evidence and can make the evidence not of any use.

 

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I hate me self I’m so sad
Dmitry [639]

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be happy

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8 0
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finlep [7]
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Is any skin growth, such as a callus, in which there is overgrowth and thickening of the skin.
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