Search Header Logo
DNA Testing and Sibling Relationships

DNA Testing and Sibling Relationships

Assessment

Interactive Video

Biology

9th - 10th Grade

Practice Problem

Hard

Created by

Patricia Brown

FREE Resource

The video explores the variability in DNA sharing among siblings and cousins, using a user question as a starting point. It demonstrates how siblings can share different amounts of DNA with a common match and uses tools like DNA Painter and the Shared CM Tool to analyze these differences. The video emphasizes the importance of testing multiple siblings to better understand genetic relationships and provides practical applications for using this data in genealogical research.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main topic discussed in the introduction of the video?

How to use the DNA Painter tool

The history of genetic research

The importance of DNA testing

The variability of DNA shared among siblings

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example provided, how many siblings are compared to a third cousin once removed?

Five siblings

Four siblings

Three siblings

Two siblings

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What tool is used to analyze the range of centimorgans shared with a third cousin once removed?

Gene Tracker

Genetic Mapper

DNA Painter

DNA Analyzer

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the average number of centimorgans shared with a third cousin once removed according to the DNA Painter tool?

48 centimorgans

100 centimorgans

200 centimorgans

150 centimorgans

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the range of centimorgans that can be shared with a third cousin once removed?

0 to 100 centimorgans

0 to 192 centimorgans

100 to 200 centimorgans

50 to 150 centimorgans

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why might siblings share different amounts of DNA with a common match?

Because of different birth orders

Due to errors in DNA testing

Because of environmental factors

Due to different parental DNA contributions

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What can be inferred if a sibling shares 220 centimorgans with a match?

They are likely not third cousins once removed

They are definitely third cousins once removed

They are unrelated

They are siblings

Access all questions and much more by creating a free account

Create resources

Host any resource

Get auto-graded reports

Google

Continue with Google

Email

Continue with Email

Classlink

Continue with Classlink

Clever

Continue with Clever

or continue with

Microsoft

Microsoft

Apple

Apple

Others

Others

Already have an account?