mechanisms, both classical and modern including incomplete dominance, sex-linked traits, goodness of fit test (Chi-square) and dihybrid crosses are investigated through examples. Dihybrid crosses can be used to explore linkage groups. Gene interactions and phenotypic effects can be introduced using real-world examples (e.g. polygenic inheritance, epistasis, and pleiotrophy). Chapter 12 – DNA and RNA At the high school level, the explanation of genes is expanded to include the following concepts: Life is specified by genomes. Each organism • has a genome that contains all of the biological information needed to build and maintain a living example of that organism. The biological information contained in a genome is encoded in its deoxyribonucleic acid (DNA) and is divided into discrete units called genes. are segments of DNA molecules. The • “Genes sequence of DNA bases in a chromosome Building DNA Gizmo Gizmo Quiz determines the sequence of amino acids in a protein. Inserting, deleting or substituting segments of DNA molecules can alter genes. An altered gene may be passed on to every • cell that develops from it. The resulting features may help, harm or have little or no effect on the offspring’s success in its environments. Gene mutations (when they occur in gametes) • can be passed on to offspring. Genes code for protein. The sequence of DNA • bases in a chromosome determines the sequence of amino acids in a protein. The sequence of DNA bases on a chromosome Protein Synthesis Manipulatives determines the sequence of amino acids in a protein. Proteins catalyze most chemical Cut/Paste mRNA/Anti-codon/A.A. reactions in cells. Protein molecules are long,
Chapter 12 – DNA and RNA mechanisms, both classical and modern including incomplete dominance, sex-linked traits, goodness of fit test (Chi-square) and dihybrid crosses are investigated through examples. Dihybrid crosses can be used to explore linkage groups. Gene interactions and phenotypic effects can be introduced using real-world examples (e.g. polygenic inheritance, epistasis, and pleiotrophy). At the high school level, the explanation of genes is expanded to include the following concepts: • Life is specified by genomes. Each organism has a genome that contains all of the biological information needed to build and maintain a living example of that organism. The biological information contained in a genome is encoded in its deoxyribonucleic acid (DNA) and is divided into discrete units called genes. • “Genes are segments of DNA molecules. The sequence of DNA bases in a chromosome determines the sequence of amino acids in a protein. Inserting, deleting or substituting segments of DNA molecules can alter genes. • An altered gene may be passed on to every cell that develops from it. The resulting features may help, harm or have little or no effect on the offspring’s success in its environments. • Gene mutations (when they occur in gametes) can be passed on to offspring. • Genes code for protein. The sequence of DNA bases in a chromosome determines the sequence of amino acids in a protein. The sequence of DNA bases on a chromosome determines the sequence of amino acids in a protein. Proteins catalyze most chemical reactions in cells. Protein molecules are long, Building DNA Gizmo Protein Synthesis Manipulatives Cut/Paste mRNA/Anti-codon/A.A. Gizmo Quiz
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