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Lesson Plan: Monohybrid Inheritance Biology • First Year of Secondary School
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to recall Mendel’s laws of inheritance and interpret genetic diagrams of monohybrid crosses.
Objectives
Students will be able to
- describe Mendel’s experiments with pea plants and how they demonstrated the inheritance of dominant and recessive factors,
- relate Mendel’s work to the chromosomal theory of inheritance,
- define the terms gene, allele, homozygous, heterozygous, genotype, and phenotype,
- draw and interpret genetic diagrams to show monohybrid inheritance of alleles,
- calculate expected phenotypic ratios for these crosses,
- use genetic diagrams to determine the probability of offspring inheriting certain alleles and displaying certain phenotypes.
Prerequisites
Students should already be familiar with
- simple Punnett squares,
- dominant and recessive alleles,
- parents passing on genetic material to their offspring.
Exclusions
Students will not cover
- dihybrid crosses.
