Free Printable WorksheetScienceGrade 10Science CurriculumBIO.10.70

10.70 DNA Technologies PCR, Restriction Enzymes, and Gel Electrophoresis Worksheet

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Worksheet Overview & Skills Covered

Core academic competencies and curriculum alignment

This Biology Science worksheet provides structured practice on 10.70 DNA Technologies PCR, Restriction Enzymes, and Gel Electrophoresis. Students are guided through targeted exercises that build foundational understanding, computational accuracy, and critical thinking skills.

DNA Technologies: PCR, Restriction Enzymes, and Gel Electrophoresis: Students interpret diagrams and results from PCR, restriction enzyme digestion, DNA fingerprinting, gel electrophoresis, and sequencing. Rigor range: standard concept checks through honors/Pre-AP/AP-ready sequence, probability, pedigree, population, and bioethics analysis. Aligned to FreeK12Practice High School Biology Curriculum Crosswalk (NGSS/NRC Framework; CCSS Literacy and Mathematics; AP Biology enrichment; Texas TEKS Biology; Florida NGSSS/CPALMS Biology; Virginia SOL Biology; California NGSS and New York State Science Learning Standards) BIO.10.70 - DNA Technologies: PCR, Restriction Enzymes, and Gel Electrophoresis: National: NGSS HS-LS1-1; HS-LS3-1; SEP: Analyzing Data; CCSS RST.9-10.3; RST.9-10.7; HSS.ID.A.1; AP Biology IST-4, SP4, SP5. State frameworks: TX TEKS BIO.7D, BIO.1D; FL NGSSS SC.912.L.16.10; VA SOL BIO.5e; CA NGSS/NYSSLS HS-LS1-1, HS-LS3-1.

Whether you are an educator preparing classroom handouts, a tutor reinforcing weekly topics, or a parent supporting homeschool learning, this printable resource gives students the deliberate practice required to achieve subject fluency and master state standards.

Grade

Biology

Subject

Science

Domain

Science Curriculum

Formats

PDF & DOCX

Sample Practice Problems

Preview the types of problems and questions covered in this worksheet

Below are sample questions representative of the exercises included on this worksheet and related 10.70 DNA Technologies PCR, Restriction Enzymes, and Gel Electrophoresis skill assessments:

Problem 1Difficulty: Mastery

A scientist wants evidence that a single-base variant both changes a restriction site and is present in a patient's DNA. Which evidence combination is strongest?

AA gel ladder alone shows many bands, so the variant must be present.

BA no-template control has a band, and sequencing is skipped.

CA PCR product is absent, so the exact base change is confirmed.

DSequencing shows the base change, and RFLP digestion shows the predicted fragment pattern.

Solution & Explanation:Sequencing directly verifies the base change, while the RFLP pattern tests its expected effect on restriction cutting. Agreement between independent evidence strengthens the conclusion.

Problem 2Difficulty: Mastery

A hospital lab compares patient DNA samples using a PCR assay. Patient A and Patient B are expected to have different genotypes, but their gel lanes are identical across all tested loci while the sample labels in the notebook were crossed out and rewritten. What is the best quality-control response?

AReport the identical profiles because rewritten labels cannot affect interpretation.

BAssume the two patients are genetically identical at every locus in the genome.

CRepeat the extraction or PCR from independently verified samples before reporting genotypes.

DDelete the ladder lane so the two profiles look easier to compare.

Solution & Explanation:Unexpected identical profiles combined with labeling uncertainty can indicate a sample mix-up. Independent re-testing protects against reporting an incorrect genotype.

Problem 3Difficulty: Mastery

A lab compares two samples. Sample 1 has bands at 210 bp and 340 bp for locus A; Sample 2 has the same bands at locus A but differs at four other loci. What conclusion is best?

AThe samples must be from the same source because any one locus matches.

BMatching one locus is not enough to identify the samples as the same source.

CThe samples contain no DNA because four loci differ.

DThe other loci are irrelevant because all STRs are identical in everyone.

Solution & Explanation:DNA identification uses a profile across multiple loci. A single matching locus can occur by chance, so differences at other loci argue against a full match.

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Frequently Asked Questions

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QWhat grade level and standards does this worksheet align with?

This worksheet is designed specifically for Biology Science students. It aligns with educational standard BIO.10.70 (National: NGSS HS-LS1-1; HS-LS3-1; SEP: Analyzing Data; CCSS RST.9-10.3; RST.9-10.7; HSS.ID.A.1; AP Biology IST-4, SP4, SP5. State frameworks: TX TEKS BIO.7D, BIO.1D; FL NGSSS SC.912.L.16.10; VA SOL BIO.5e; CA NGSS/NYSSLS HS-LS1-1, HS-LS3-1.).