Review: A Simplified Guide To DNA Evidence

Front

What is DNA evidence?

Back

DNA evidence refers to biological material that contains DNA, which can be used to identify individuals in forensic investigations.

Front

Why is it important to store liquid biological samples in refrigerated containers?

Back

Refrigeration slows down the degradation of DNA, preserving its integrity for analysis.

Front

From whom is mitochondrial DNA (mtDNA) inherited?

Back

Mitochondrial DNA is inherited exclusively from the mother.

Front

What major advancement occurred in forensic science in the mid-1980s?

Back

DNA analysis revolutionized forensic science by allowing for the identification of individuals based on their unique DNA profiles.

Front

What types of biological evidence can contain DNA?

Back

Biological evidence such as blood, saliva, hair, and skin cells can contain DNA.

Front

What does the presence of a person's DNA in an unexpected location indicate?

Back

It may indicate that the person was present at the scene, potentially linking them to a crime.

Front

What is the significance of a DNA profile in forensic investigations?

Back

A DNA profile can be used to identify suspects or victims in criminal cases.

Front

What type of biological sample can be found on a cigarette left at a crime scene?

Back

Saliva can be found on a cigarette, which may contain DNA.

Front

What is the role of DNA in forensic science?

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DNA is used to match biological evidence to individuals, helping to solve crimes and exonerate the innocent.

Front

What is the difference between nuclear DNA and mitochondrial DNA?

Back

Nuclear DNA is inherited from both parents and is unique to each individual, while mitochondrial DNA is inherited only from the mother and is less unique.