VNTR Alleles and CODIS Markers

VNTR Alleles and CODIS Markers

Assessment

Interactive Video

Biology, Science, Other

11th Grade - University

Hard

Created by

Patricia Brown

FREE Resource

This lecture extends the discussion on DNA fingerprinting, focusing on VNTR alleles and their high mutation rates due to DNA polymerase errors. It explains the concept of VNTRs, their polymorphic nature, and how they are used in forensic science through the CODIS system. The lecture also covers the mutation rates of VNTRs compared to point mutations and discusses the inheritance patterns of these genetic markers.

Read more

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does VNTR stand for in the context of DNA fingerprinting?

Variable Number Tandem Repeat

Variable Nucleotide Transcription Repeat

Variable Nucleotide Tandem Repeat

Variable Number Transcription Repeat

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why are VNTR alleles considered highly polymorphic?

Because they are found in all organisms

Due to their ability to mutate into different genes

Due to the presence of multiple copies of short sequences

Because they are located on the same chromosome

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does DNA polymerase contribute to the variability of VNTR loci?

By altering the number of repeat copies

By changing the sequence order

By deleting entire sequences

By inserting incorrect bases

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the CODIS set of VNTR markers?

They are used for legal and forensic identification

They are used for genetic engineering

They are used for animal breeding programs

They are used for studying plant genetics

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why were the CODIS markers chosen for forensic work?

They are highly polymorphic across populations

They are located on the same chromosome

They are only found in Europeans

They have a low mutation rate

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the typical length of repeats in CODIS markers?

Five nucleotides

Three nucleotides

Two nucleotides

Four nucleotides

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the mutation rate of CODIS markers compared to point mutations?

100,000 times faster

10 times slower

1,000 times slower

100 times faster

Create a free account and access millions of resources

Create resources
Host any resource
Get auto-graded reports
or continue with
Microsoft
Apple
Others
By signing up, you agree to our Terms of Service & Privacy Policy
Already have an account?