Punnett Square Worksheets
Punnett square worksheets and genetics lesson plans that are designed for high school, middle school, and elementary school life science teachers are downloadable here for free. The Punnett square worksheets lets students practice the probability of inheritance. Mendel pea plant worksheets help students learn the history of genetics, the vocabulary of genetics and introduced to the probabilities of genetics. NGSS Life Science offers many great lessons. Free Lesson Plan (PDF) link below or become a member to get access to the answer key and editable file. Free Punnett square curriculum includes:
| Punnett Square Worksheet – Pea Plant Genetics |
 Free Lesson Plan (PDF) |
| Genetics Test Question Bank |
| Free Lesson Plan (PDF) |
| Punnett Square Worksheet - Fruit Fly Genetics |
| Free Lesson Plan (PDF) |
| Autosomal Pedigrees Worksheet |
| Free Lesson Plan (PDF) |
| Dihybrid Cross Worksheet |
| Free Lesson Plan (PDF) |
| Punnett Square Worksheet - Human Genetic Disorders |
| Free Lesson Plan (PDF) |
| Punnett Square Worksheet - Incomplete Dominant and Codominant Traits |
| Free Lesson Plan (PDF) |
| Heredity Lab |
| Free Lesson Plan (PDF) |
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Answer Keys
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Test Question Banks
Punnett Square Concepts
- Classical Genetics - Gregor Mendel, inheritance, heredity of traits, pea plants experiments.
- Punnett Squares - genotype, phenotype, genotypic ratios, phenotypic ratios
- Monohybrid Cross Punnett Squares - pea plant genetics, genetic disorders, genetic probability with a single trait.
- Dihybird Cross Punnett Squares - fruit fly genetics, genetic probability with two traits.
- Advanced Punnett Squares - incomplete dominance, pleiotropy, autosomal traits, sex-linked traits.
- Mendel’s Law of Dominance - dominant, recesive, carrier of a trait, dominant allele, recessive allele.
- Law of Segregation - Gene, allele, homozygous, heterozygous, gametes.
- Law of Independent Assortment - multi-trait crosses, 9:3:3:1 ratio, chromosomes assort independently.
- Genetic Disorders - cystic fibrosis, albinism (albino), neurofibromatosis, sickle-cell anemia, hemophilia A, color blindness.
- Gametes - sperm, egg, ovum, gonads.
- Pedigrees - autosomal and sex-linked.
Lessons Organized by NGSS Standard
- LS1 From Molecules to Organisms
- LS2 Ecosystems
- LS3 Heredity
- LS4 Biological Evolution
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