DNA Fingerprinting Test

Front

What is DNA Fingerprinting?

Back

DNA Fingerprinting is a technique used to identify individuals based on their unique DNA profiles, often used in forensic science, paternity testing, and genetic research.

Tags

NGSS.HS-LS3-2

Front

What role do restriction enzymes play in DNA analysis?

Back

Restriction enzymes cut DNA into fragments of specific lengths, allowing for the analysis of genetic material in techniques like gel electrophoresis.

Front

What is gel electrophoresis?

Back

Gel electrophoresis is a laboratory method used to separate DNA fragments based on their size by applying an electric field to a gel matrix.

Front

What is the purpose of a negative control in an experiment?

Back

A negative control is used to ensure that the experimental results are due to the treatment and not other factors, indicating that there is no contamination.

Front

How does DNA move in gel electrophoresis?

Back

DNA is negatively charged and moves towards the positive electrode in gel electrophoresis.

Front

What is the significance of DNA fragment size in fingerprinting?

Back

The size of DNA fragments helps in distinguishing between individuals, as variations in DNA sequences result in different fragment lengths.

Front

What happens if restriction enzymes are not used in gel electrophoresis?

Back

If restriction enzymes are not used, only one long band of DNA would be produced, making it difficult to differentiate between samples.

Front

What is a micropipettor used for?

Back

A micropipettor is used to accurately measure and transfer small volumes of liquid in laboratory settings.

Front

What is the first step in using a micropipettor?

Back

The first step is to add a tip and push the button to the first stop to draw up the liquid.

Front

What does contamination in DNA testing indicate?

Back

Contamination in DNA testing indicates that foreign DNA has been introduced into the sample, which can lead to inaccurate results.