Mississippi Science GEN.3.3
The Standard
- GEN.3
- Students will investigate biotechnology applications and bioengineering practices.
Enrichment: Use an engineering design process to refine methodology and optimize the process of genetic transformation, protein purification, and/or gel electrophoresis. *
2026 Mississippi College- and Career-Readiness Standards for Science · Biotechnological Applications
Teacher's field guide
What This Standard Means
What Students Need to Do
- Students choose one part of a gel electrophoresis procedure to improve. They set a goal they can measure, change one condition, compare the results, and revise their procedure.
What Mastery Looks Like
- A student can test two sample volumes while keeping the gel, voltage, and run time the same. They use band sharpness to choose a volume and explain what to test next.
Common Misconceptions
- Students may change several conditions at once, then assume they know which change helped. They may also think a brighter band is always better, even when too much sample makes it smear.
How to Assess It
- Exit ticket: A gel lane is smeared after loading 10 µL of sample. Name one change to test, two conditions to keep the same, and what you would measure to judge the result.
Lesson moves
Ways to Teach It
With a precast gel and food dye, have pairs load 2 µL and 10 µL in separate lanes, then compare band width.
Ask: If two gels differ in voltage and sample volume, can you tell which change sharpened the bands? Explain.
Give teams printed gel images and procedure cards; have them choose one next test for each blurry result and defend it.
Show a forensic lab gel and ask which smeared lane needs a rerun before anyone compares samples.
Free download
Printable GEN.3.3 Worksheet
A ready-to-print activity worksheet aligned to GEN.3.3, with an answer key for the teacher on its own page. No account needed.
PDF, US Letter, prints cleanly in black and white.
Download the worksheetKeep exploring
Related Standards
- GEN.2B.5
Enrichment: Use an engineering design process to research the current status of genetic technology and personalized medicine, then propose and test targeted med...
- BOT.1.8
Enrichment: Use an engineering design process to manipulate a variable of choice to refine a protocol to optimize output of photosynthesis or cellular respirati...
- GEN.3.2
Experimentally demonstrate genetic transformation, protein purification, and/or gel electrophoresis.
- GEN.1A.5
Enrichment: Use an engineering design process to refine the methodology to optimize the DNA-extraction process for various cell types. *
Turn this exact standard into a lesson
Grade, subject, topic, and the complete standard are prefilled. Create one free, no account needed.
Also for this standard:Make a WorksheetMake a QuizMake a Sub Lesson