Genetics

Year 10 Science – Unit 1: Lessons 1-15

Australian Education Research Organisation (AERO), www.edresearch.edu.au

DNA Helix Structure
Credit: qimono/pixabay.com

Developed in partnership between AERO and Ochre Education, these lesson resources support the use of effective, evidence-based practices and address the learning expected in the Australian Curriculum. An exemplar unit plan provides guidance on the structure, sequence and decision-making made during the planning process.

In this sequence of 15 lessons students will learn about how genetics and DNA are inherited from parents in fertilisation, as well as how DNA replicates itself.

Lesson 1 How genes are inherited in fertilisation

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Students will learn how genes are inherited in the process of fertilisation.

Lesson 2 How genes are combined in fertilisation

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Students will learn the role of gametes in reproduction, and ways in which probabilities of offspring outcomes can be determined from parental genotypes.

Lesson 3 Describing monohybrid crosses

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Students will learn how to construct Punnett squares, interpret dominant/recessive allele combinations and use these to predict phenotypes.

Lesson 4 Predicting genotypes and phenotypes

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Students will learn to use a pedigree chart to indicate inheritance of a particular trait, identify heterozygosity/homozygosity from the diagram and identify the mode of inheritance from a pedigree.

Lesson 5 Assign genotypes to pedigree diagrams

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Students will learn to describe the inheritance pattern and causes of Huntington’s disease and cystic fibrosis.

Lesson 6 Describe inherited diseases (Part 1)

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Students will learn to describe the inheritance pattern and causes of sickle cell anaemia.

Lesson 7 Describe inherited diseases (Part 2)

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Students will learn to describe the inheritance pattern and causes of haemophilia.

Lesson 8 Predict the outcomes of dihybrid crosses (Part 1)

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Students will learn to define a dihybrid cross and construct Punnett squares to predict the phenotypes and genotypes of offspring.

Lesson 9 Predict the outcomes of dihybrid crosses (Part 2)

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Students will revise constructing dihybrid cross Punnett squares and predicting offspring.

Lesson 10 Describe the components of a nucleotide

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Students will learn to describe the content of a nucleotide, differentiating between DNA and RNA.

Lesson 11 Describe how DNA replicates

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Students will learn the simple steps of DNA replication, label diagrams of a simple DNA replication fork and describe the contribution of the Meselson and Stahl experiment to the semi-conservative theory.

Lesson 12 Function of proteins in DNA engineering

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Students will learn how DNA probes, endonuclease and ligase are used in DNA engineering.

Lesson 13 Genetic engineering to produce proteins

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Students will learn to describe the steps involved in genetically engineering bacteria and describe ways in which it is used in medicine.

Lesson 14 DNA profiling

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Students will learn the process of DNA profiling, including the principles of electrophoresis and variables which influence sample movement.

Lesson 15 Review genetics

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Students will review the learning from this unit, applying the information to exam-style questions.