9th Grade Classic Mendelian Genetics (Patterns Of Inheritance) Lesson Plan Example (Biology)

Topic: Classic Mendelian Genetics (Patterns of Inheritance)

Objectives & Outcomes

• Students will be able to describe the basic laws of inheritance and their implications in explaining patterns of disease transmission.
• Students will be able to classify inherited diseases in terms of their patterns of inheritance, and predict the probability of disease recurrence in subsequent generations.

Materials

• Diagrams of basic genetic inheritance, such as punnet squares or pedigree charts
• Examples of single gene diseases with different patterns of inheritance, such as cystic fibrosis, Huntington's disease, or phenylketonuria
• Calculator or pen and paper for calculating probabilities

Warm-Up

• Start the class by showing a picture or video of a family with a single gene disease, such as cystic fibrosis. Ask the students to raise their hand if anyone in their family has been diagnosed with this disease.
• Then, ask the students to raise their hand if anyone in their family has not been diagnosed with this disease.
• Based on the students' answers, discuss the possible patterns of inheritance for this disease in the presented family.

Direct Instruction

• Define single gene disease and explain how it can be inherited.
• Discuss the basic laws of inheritance, including the concepts of dominance, recessiveness, and co-dominance.
• Use examples to illustrate the patterns of inheritance for single gene diseases, including autosomal recessive, X-linked recessive, X-linked dominant, and autosomal dominant.

Guided Practice

• Have students work in small groups to identify the pattern of inheritance for a selected single gene disease.
• Have each group present their findings to the class and discuss.

Independent Practice

• Have students work individually or in small groups to research a selected single gene disease and create a presentation on the inheritance pattern.
• Students can use technology such as Prezi, Google Slides, or Powtoon to create the presentation.

Closure

• Have students share their presentations with the class.
• Review the main points of the lesson and have students provide examples of single gene diseases and their inheritance patterns.

Assessment

• Observe students during the independent practice activity and provide feedback on their understanding of the material.
• Have students complete a quiz or worksheet reviewing the principles of single gene inheritance and their corresponding patterns.