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Which of the following is true regarding DNA analysis?

It is used to identify a suspect more often than it is used to resolve paternity disputes.
It provides unreliable results for samples that have been in storage for a long time.
It is used to identify a suspect more often than it is used to identify a victim.
It is a reliable method for solving unidentified missing persons cases.

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Answer:

DNA analysis is a reliable method for solving unidentified missing persons cases

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In its natural state, each DNA molecule is actually composed of two single strands held together along their length with hydrogen bonds between the bases. Watson and Crick proposed that the DNA is made up of two strands that are twisted around each other to form a right-handed helix, called a double helix.