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Lesson Plan: Genetic Diagrams Biology
This lesson plan includes the objectives, prerequisites, and exclusions of the lesson teaching students how to use genetic diagrams to make predictions about genotypes and phenotypes.
Objectives
Students will be able to
- define the terms genotype and phenotype,
- recall that dominant alleles are always expressed in a phenotype, whereas recessive alleles must have two copies to be expressed,
- draw and interpret Punnett squares to show the inheritance of alleles,
- carry out genetic crosses with X and Y chromosomes to demonstrate the inheritance of sex in humans,
- calculate the probability of offspring inheriting a certain genotype or phenotype.
Prerequisites
Students should already be familiar with
- the fact that genetic material is inherited by offspring from their parents,
- the basic understanding of probability.
Exclusions
Students will not cover
- the inheritance of genetic diseases and sex-linked diseases,
- dihybrid inheritance.
