DNA Profiling Unit Test

Front

What is DNA profiling?

Back

DNA profiling is a forensic technique used to identify individuals by analyzing their unique DNA characteristics.

Front

What are Short Tandem Repeats (STRs)?

Back

STRs are repeating sequences of DNA that are used in DNA profiling to differentiate between individuals.

Front

What is the main advantage of using STR analysis over other DNA profiling methods?

Back

It is faster and requires less DNA.

Front

How much DNA does a child inherit from each parent?

Back

A child inherits 50% of their DNA from the mother and 50% from the father.

Front

What is gel electrophoresis?

Back

Gel electrophoresis is a laboratory method used to separate DNA fragments based on their size.

Front

In gel electrophoresis, where do the largest DNA fragments appear?

Back

The largest DNA fragments appear closest to the starting wells.

Front

What is the charge of DNA?

Back

DNA has a negative charge.

Front

What is the purpose of DNA profiling in criminal investigations?

Back

DNA profiling is used to match biological evidence from a crime scene to potential suspects.

Front

What is the role of PCR in DNA profiling?

Back

PCR (Polymerase Chain Reaction) is used to amplify small amounts of DNA for analysis.

Front

What is the significance of DNA markers in profiling?

Back

DNA markers are specific sequences used to identify genetic differences between individuals.