VIRTUAL BIOLOGY LAB · LAB 35

🧬 Monohybrid Inheritance Simulator

Use a Punnett square to predict outcomes of a monohybrid cross.

CBSE Classes 10–12Interactive practicalDrag & drop challengeStudent notebook

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🔎 Learning objective

Use a Punnett square to predict outcomes of a monohybrid cross.

3Hands-on matches

1Knowledge check

🧬 Interactive laboratory workspace

Explore the biological idea using the model controls. This is a conceptual classroom simulation.

🧬

Monohybrid Inheritance Simulator

A heterozygous cross Tt × Tt gives an expected 3:1 phenotypic ratio under complete dominance.

PRACTICAL WORKBENCH · EXPERIMENT 35

🧪 Genetics cross station: Set up a monohybrid cross

A Punnett square predicts probabilities, not guaranteed outcomes in a small number of offspring.

Ready to begin

APPARATUS & EXPERIMENT CONTROLS

01 · Set up apparatus02 · Adjust variables03 · Run trial04 · Record reading

Parent 1 genotype Parent 2 genotype Dominance pattern

◉Punnett square▤

OBSERVATION & MEASUREMENTS

Parent 1 genotype—

Parent 2 genotype—

Dominance pattern—

Expected phenotype ratio—Awaiting run

A Punnett square predicts probabilities, not guaranteed outcomes in a small number of offspring.

Scientific interpretation will appear after the trial.

Scientific note: Select parental alleles and generate the Punnett square. Compare expected ratios with probability.

Model conditionObservation focus

Model ready. Choose a condition and run the model to see an observation.

🧪 Hands-on drag & drop challenge

PRACTICAL SKILL BUILDER

Drag each item from the tray to its correct destination. On a phone or tablet, tap an item and then tap its destination. Complete all three matches to finish.

🧰 MATERIALS & CONCEPTS

🎯 DROP ZONES

Choose an item and place it in the matching zone.

📓 Observation notebook

Record your observation and export it for revision.

Key concept: A heterozygous cross Tt × Tt gives an expected 3:1 phenotypic ratio under complete dominance.

🎯 Quick knowledge check

Expected phenotype ratio for Tt × Tt is:

Select one answer to check your understanding.

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