PT #061 DNA Profiling Process

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What is PCR in forensic science?

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PCR (Polymerase Chain Reaction) is a technique used to amplify small amounts of DNA for analysis in forensic science.

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What does VNTR stand for?

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VNTR stands for Variable Number Tandem Repeats, which are DNA polymorphisms that involve sequences ranging in length from 9 to 80 bases.

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What is the role of DNA restriction enzymes?

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DNA restriction enzymes cut DNA into fragments of different lengths, which is essential for DNA analysis.

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What is the function of a primer in PCR?

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A primer is used to identify the particular region of DNA to be copied by PCR.

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Which technique is primarily used to amplify DNA for analysis?

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PCR (Polymerase Chain Reaction) is the technique used to amplify DNA for analysis.

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What is the significance of DNA profiling?

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DNA profiling is significant for identifying individuals based on their unique DNA patterns, which can be used in forensic investigations.

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What are STRs in DNA profiling?

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STRs (Short Tandem Repeats) are repeating sequences of DNA that are used in forensic analysis to differentiate between individuals.

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How does PCR contribute to forensic science?

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PCR allows forensic scientists to analyze minute quantities of DNA, making it possible to obtain genetic information from small or degraded samples.

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What is the purpose of gel electrophoresis in DNA analysis?

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Gel electrophoresis is used to separate DNA fragments based on their size, allowing for the visualization and comparison of DNA profiles.

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What is the difference between DNA and RNA?

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DNA (Deoxyribonucleic Acid) stores genetic information, while RNA (Ribonucleic Acid) plays a role in protein synthesis and gene expression.