Better for polyhybrid crosses Recessive Genetic crosses Punnet squares Dominant Alleles for the blood groups Trihybrid crossing Dominant Genetic crosses Different forms of the same gene Better for polyhybrid crosses Non sex-linked inheritance Down’s syndrome Sex chromosomes Red + white = pink Trihybrid crossing Punnet squares A gene whose effect is not expressed Phenotype Sex chromosomes Red + white = pink Non-allelic gene Recessive Different forms of the same gene Inheritance Down’s syndrome Descriptor: Students can: Match genetic terms with definitions Match images/diagrams with genetic terms Match images/diagrams with definition Non sex-linked inheritance Crossing over Alleles aa A gene whose effect is not expressed Phenotype Non-allelic gene Alleles for the blood groups Inheritance XX & XY Autosomal Forked line Zh Assil Blue eyes Made up of two of the same alleles AABbCc x AaBBcc Recessive AA Heterozygous Co-dominance aa Sex-linked inheritance IA, IB, IO Chromosome Descriptor: Students can: Match genetic terms with definitions Match images/diagrams with genetic terms Match images/diagrams with definition aa Crossing over Alleles Monohybrid XX & XY Autosomal Forked line Zh Assil Blue eyes aa Made up of two of the same alleles AABbCc x AaBBcc Chromosome Recessive AA IA, IB, IO Monohybrid Heterozygous Co-dominance Sex-linked inheritance
