Unit 5: Introduction to Genetics and Heredity
The chapter provides an overview of genetics, covering fundamental terms and concepts such as heredity, inheritance, and the structure of DNA. It emphasizes the principles of Mendelian genetics and the use of Punnett squares to predict genetic outcomes, as well as the implications of genetic disorders and ethical considerations in genetics. Additionally, it engages students with activities designed to deepen their understanding of genetic inheritance and current genetic technologies.
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Sections
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What we have learnt
- Heredity is the passing of traits from parents to offspring, and inheritance is how genetic information is transmitted between generations.
- Mendelian genetics includes principles such as the law of segregation and law of independent assortment, which govern genetic inheritance.
- DNA is the genetic material that forms the basis for heredity, with chromosomes containing genes that determine specific traits.
Key Concepts
- -- Heredity
- The passing of traits from parents to offspring.
- -- Mendelian Genetics
- The principles of inheritance established by Gregor Mendel, including concepts like dominant and recessive alleles.
- -- DNA
- The molecule that carries all the hereditary information necessary for life.
- -- Punnett Square
- A graphical tool used to predict the possible genotypes and phenotypes of offspring from genetic crosses.
- -- Genetic Disorder
- Conditions caused by abnormalities in an individual's DNA that can be inherited.
- -- Ethical Considerations in Genetics
- The responsibilities and moral considerations surrounding the use and implications of genetic technologies.
Additional Learning Materials
Supplementary resources to enhance your learning experience.