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Forensics Worksheet: DNA Profiles and STRs
Forensics Worksheet: DNA Profiles and STRs
Forensics Worksheet: DNA Profiles and STRs
Forensics Worksheet: DNA Profiles and STRs
Forensics Worksheet: DNA Profiles and STRs
Forensics Worksheet: DNA Profiles and STRs
Forensics Worksheet: DNA Profiles and STRs
Forensics Worksheet: DNA Profiles and STRs
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What others say

"I worked with my forensic science class on this packet. We were able to figure it out together and the students really got to see how STRs are helpful in identifying a person."
star
Katherine M.
"I teach a Science enrichment class for 8th graders. It is a quarterly class for 40 minutes per day. This activity was easily modified for all levels (as it is a special) and engaging for all students. "
star
Jean c.

Description

Make teaching Forensics easy with this DNA Profiles and STRs Worksheet. Use this resources as an introduction, review, reinforcement, independent work, or as an assessment. The background information and questions provided make this an easy to use assignment students can master with little instruction. Real FBI data and cold-case data make this an engaging activity for students. Teacher answer key is included!

Upon completion of this worksheet, students will be able to:

Content Standards:

  • SFS3f: Compare short tandem repeat patterns (STR) and relate to identifying the DNA of an individual.
  • SFS3g: Explain the use of DNA database of DNA profiling.

Content Objectives (TSWBAT):

  1. Explain the steps involved in DNA profiling
  2. Identify a suspect based on DNA fingerprints
  3. Understand short tandem repeats (STRs) and how they are used to solve crimes
  4. Identify CODIS STR Loci from a diagram
  5. Use FBI STR loci allele frequency data to analyze genetic variations
  6. Use FBI STR loci allele frequency data to solve a crime
  7. Create a DNA profile from given data

Literacy Standards (Students will):

  • L11-12RST1: Cite specific textual evidence to support analysis of science and technical texts, attending to important distinctions the author makes and to any gaps or inconsistencies in the account.
  • L11-12RST2: Determine the central ideas of conclusions of a text; summarize complex concepts, processes, or information presented in a text by paragraphing them in simpler but still accurate terms.
  • L11-12RST3: Follow precisely a complex multistep procedure when carrying out experiments, taking measurement, or performing technical tasks; analyze the specific results based on explanations in the text.

Language Objectives:

  1. Discuss the steps in DNA Fingerprinting.
  2. Write, discuss, and use key vocabulary appropriately.

Key Vocabulary: DNA, allele, gene, DNA fingerprint, STR, STR, PCR, gel electrophoresis, restriction enzymes, DNA profile, nucleotide, polymer, single nucleotide polymorphisms, STR markers, primer, allele, chromosome, homologous chromosomes, CODIS, exon, intron, familial searching, forensic genealogy, gene, human genome,, kinship, karyotype

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Forensics Worksheet: DNA Profiles and STRs

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Highlights

Digital downloads
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Grades
4th - 12th, Adult Education, Higher Education
Pages
4
Answer Key
Included
Teaching Duration
45 minutes

What others say

"I worked with my forensic science class on this packet. We were able to figure it out together and the students really got to see how STRs are helpful in identifying a person."
star
Katherine M.
"I teach a Science enrichment class for 8th graders. It is a quarterly class for 40 minutes per day. This activity was easily modified for all levels (as it is a special) and engaging for all students. "
star
Jean c.

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Make teaching easier with this growing Forensics Bundle: DNA Evidence! The unit plan includes differentiation and SIOP strategies! The matching PowerPoint will save you time! Labs, worksheets, and assessments coming soon! Find out more by clicking the product descriptions below!For other great re
Price $7.50Original Price $21.95Save $14.45
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Make teaching easier and save time and money with the Forensics Whole Course Growing Bundle! This bundle includes unit plans, labs, worksheets, PowerPoint's, and tests for ten of the most common Forensic Science units. Items will continue to be added. Please carefully view the resources currently
Price $99.29Original Price $221.64Save $122.35
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Description

Make teaching Forensics easy with this DNA Profiles and STRs Worksheet. Use this resources as an introduction, review, reinforcement, independent work, or as an assessment. The background information and questions provided make this an easy to use assignment students can master with little instruction. Real FBI data and cold-case data make this an engaging activity for students. Teacher answer key is included!

Upon completion of this worksheet, students will be able to:

Content Standards:

  • SFS3f: Compare short tandem repeat patterns (STR) and relate to identifying the DNA of an individual.
  • SFS3g: Explain the use of DNA database of DNA profiling.

Content Objectives (TSWBAT):

  1. Explain the steps involved in DNA profiling
  2. Identify a suspect based on DNA fingerprints
  3. Understand short tandem repeats (STRs) and how they are used to solve crimes
  4. Identify CODIS STR Loci from a diagram
  5. Use FBI STR loci allele frequency data to analyze genetic variations
  6. Use FBI STR loci allele frequency data to solve a crime
  7. Create a DNA profile from given data

Literacy Standards (Students will):

  • L11-12RST1: Cite specific textual evidence to support analysis of science and technical texts, attending to important distinctions the author makes and to any gaps or inconsistencies in the account.
  • L11-12RST2: Determine the central ideas of conclusions of a text; summarize complex concepts, processes, or information presented in a text by paragraphing them in simpler but still accurate terms.
  • L11-12RST3: Follow precisely a complex multistep procedure when carrying out experiments, taking measurement, or performing technical tasks; analyze the specific results based on explanations in the text.

Language Objectives:

  1. Discuss the steps in DNA Fingerprinting.
  2. Write, discuss, and use key vocabulary appropriately.

Key Vocabulary: DNA, allele, gene, DNA fingerprint, STR, STR, PCR, gel electrophoresis, restriction enzymes, DNA profile, nucleotide, polymer, single nucleotide polymorphisms, STR markers, primer, allele, chromosome, homologous chromosomes, CODIS, exon, intron, familial searching, forensic genealogy, gene, human genome,, kinship, karyotype

Report this resource to TPT
Reported resources will be reviewed by our team. Report this resource to let us know if this resource violates TPT's content guidelines.

Reviews

4.7
Rated 4.67 out of 5, based on 9 reviews
9
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Grades used with
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Worked great for my high school Forensics
Rated 5 out of 5
February 2, 2026
This was a great review for my Forensics students at the end of DNA.
Ashley R.
247 reviews • Missouri
Grades taught: 6th, 7th, 8th
Rated 5 out of 5
May 15, 2025
I worked with my forensic science class on this packet. We were able to figure it out together and the students really got to see how STRs are helpful in identifying a person.
Katherine M.
56 reviews
Grades taught: 9th, 10th
Rated 5 out of 5
March 17, 2025
Good resource! Used it for extra credit after our DNA unit.
Erica S.
67 reviews
Grades taught: 11th, 12th
Rated 5 out of 5
August 7, 2024
I teach a Science enrichment class for 8th graders. It is a quarterly class for 40 minutes per day. This activity was easily modified for all levels (as it is a special) and engaging for all students.
Jean C.
810 reviews
Grades taught: 8th
Student populations: Learning difficulties
Rated 4 out of 5
May 7, 2024
This was a great, quick review for my students when I had about 10-15 minutes of class time to fill.
Aubrigator Science
(TPT Seller)
141 reviews
Grades taught: 11th, 12th
Rated 5 out of 5
April 30, 2024
My college non-majors biology students found this packet interesting and argued with each other over some of the questions, which is what I love to see! Alterations: Changed a couple of typos and changed names to initials. I revised a few of the crime descriptions to be less graphic, since I know some of my folks have experienced violence themselves. The image of the African American Expanded FBI STR Loci Allele Frequencies table was a little low quality, so I removed those questions. Individual questions: Question 13 (coloring barcodes) felt a little childish to my college students, and they didn't see the point after they had already identified a suspect in question 12. I got a lot of questions about #7, since it's kind of a judgment call question. Some students found it unclear where sections of the packet changed over; I had some people identifying a suspect from the first crime on the last page.
Kylee P.
5 reviews
Grades taught: , Higher Education
Rated 4 out of 5
March 29, 2023
This was a fantastic resource in my class! My students were engaged and were able to use it to review for the state test as well - great!
Janelle B.
31 reviews
Grades taught: 9th
Student populations: Learning difficulties
Best for Teachers
Response from
Best for Teachers
(TPT Seller)
Feb 24, 2024
Thank you Janelle for the nice review! I am so glad you found this resource useful! Thank you for using Best for Teachers! Don't hesitate to contact me at bestforteachers@gmail.com if there is anything I can do for you!
Rated 4 out of 5
March 14, 2022
I used this as a sub assignment. It was challenging but worked well.
Ashton H.
255 reviews
Grades taught: 11th

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