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DNA Analysis Techniques and Paternity Testing

DNA Analysis Techniques and Paternity Testing

Assessment

Interactive Video

Biology, Science, Chemistry

11th - 12th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video tutorial explains the use of DNA analysis in crime scenes and paternity tests. It covers the application of restriction enzymes to analyze DNA fragments and how gel electrophoresis is used to compare DNA samples. The tutorial also discusses the differences between crime scene analysis and paternity testing, emphasizing the need for exact matches in crime scenes and shared bands in paternity tests. Additionally, it introduces techniques like autoradiography and gel electrophoresis, highlighting their roles in visualizing DNA bands.

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary purpose of using restriction enzymes in crime scene DNA analysis?

To stain DNA

To amplify DNA fragments

To cut DNA into specific fragments

To sequence DNA

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In gel electrophoresis, what indicates a match between crime scene DNA and a suspect's DNA?

Bands of different colors

No bands present

Different band patterns

Exact matching band patterns

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why is it important for both enzyme lanes to match in crime scene analysis?

To confirm the presence of DNA

To identify the type of crime

To verify the DNA is human

To ensure the suspect is guilty

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does a 100% match in DNA bands indicate in crime scene analysis?

The suspect is guilty

The DNA is from an animal

The suspect is innocent

The DNA is contaminated

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does a paternity test determine the biological father of a child?

By matching all DNA bands with the mother

By matching all DNA bands with the potential father

By matching DNA bands with a sibling

By matching half of the DNA bands with the mother and half with the potential father

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the 'child-father' lane represent in a paternity test?

A mixture of the child's and mother's DNA

A mixture of the child's and potential father's DNA

Only the child's DNA

Only the potential father's DNA

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens if a child shares only one band with a potential father in a paternity test?

The potential father is likely not the father

The child is adopted

The potential father is confirmed as the father

The test is inconclusive

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