Foundational Genetics Skill Lesson for Reading Pedigrees.
This lesson introduces students to the basic structure and purpose of pedigree charts by first grounding them in essential genetics vocabulary. Students review and apply terms such as gene vs. allele, genotype vs. phenotype, and homozygous vs. heterozygous. A brief self-check allows students to identify areas where they need reinforcement, with optional linked review available for targeted practice.
Students are then introduced to the concept of a carrier and examine why carriers must be heterozygous for recessive traits. This prepares them to interpret information presented in pedigree charts accurately.
The lesson moves into explicit instruction on pedigree chart symbols and how relationships are represented. Students practice identifying individuals, family connections, and affected versus unaffected members within a pedigree before moving on to more complex interpretation tasks.
To apply these skills in context, students analyze a historical pedigree connected to Charles II of Spain. Using this example, they interpret relationships and trait patterns to explain how inheritance contributed to the end of his lineage. This provides a real-world case for applying genetics vocabulary and pedigree-reading skills.
This lesson is designed to function as a foundational pedigree-reading lesson prior to inheritance pattern analysis. It builds the representational literacy students need before tackling dominant, recessive, or sex-linked trait determination.
To preview this lesson, click here.
NGSS Alignment (High School):
HS-LS3-1, HS-LS3-2, HS-LS3-3
NGSS Alignment (Middle School):
MS-LS3-1, MS-LS3-2
Science & Engineering Practices (SEPs):
Developing and Using Models; Analyzing and Interpreting Data; Constructing Explanations
Crosscutting Concepts (CCCs):
Patterns; Cause and Effect; Structure and Function
Common Core (Literacy in Science):
RST.9-10.4, RST.11-12.4
RST.9-10.7, RST.11-12.7
WHST.9-10.2, WHST.11-12.2
Foundational Genetics Skill Lesson for Reading Pedigrees.
This lesson introduces students to the basic structure and purpose of pedigree charts by first grounding them in essential genetics vocabulary. Students review and apply terms such as gene vs. allele, genotype vs. phenotype, and homozygous vs. heterozygous. A brief self-check allows students to identify areas where they need reinforcement, with optional linked review available for targeted practice.
Students are then introduced to the concept of a carrier and examine why carriers must be heterozygous for recessive traits. This prepares them to interpret information presented in pedigree charts accurately.
The lesson moves into explicit instruction on pedigree chart symbols and how relationships are represented. Students practice identifying individuals, family connections, and affected versus unaffected members within a pedigree before moving on to more complex interpretation tasks.
To apply these skills in context, students analyze a historical pedigree connected to Charles II of Spain. Using this example, they interpret relationships and trait patterns to explain how inheritance contributed to the end of his lineage. This provides a real-world case for applying genetics vocabulary and pedigree-reading skills.
This lesson is designed to function as a foundational pedigree-reading lesson prior to inheritance pattern analysis. It builds the representational literacy students need before tackling dominant, recessive, or sex-linked trait determination.
To preview this lesson, click here.
NGSS Alignment (High School):
HS-LS3-1, HS-LS3-2, HS-LS3-3
NGSS Alignment (Middle School):
MS-LS3-1, MS-LS3-2
Science & Engineering Practices (SEPs):
Developing and Using Models; Analyzing and Interpreting Data; Constructing Explanations
Crosscutting Concepts (CCCs):
Patterns; Cause and Effect; Structure and Function
Common Core (Literacy in Science):
RST.9-10.4, RST.11-12.4
RST.9-10.7, RST.11-12.7
WHST.9-10.2, WHST.11-12.2
