What you’ll learn5 learning objectivesChoose one objective for a focused lesson, or study the complete topic.16.2.1Core genetic terms• Terms: gene, locus, allele, dominant, recessive, codominant, linkage, test cross, F1, F2, phenotype, genotype, homozygous, heterozygousSyllabus objective16.2.2Genetic diagrams• Genetic diagrams and Punnett squares for:- Monohybrid crosses: dominance, codominance, multiple alleles, sex linkage- Dihybrid crosses: dominance, autosomal linkage, epistasis- Test crossesSyllabus objective16.2.3Chi-squared test in genetics• Chi-squared test for significance of differences between observed and expected resultsSyllabus objective16.2.4Genes, proteins and phenotype• Relationship between genes, proteins, and phenotype:- TYR gene, tyrosinase, albinism- HBB gene, haemoglobin, sickle cell anaemia- F8 gene, factor VIII, haemophilia- HTT gene, huntingtin, Huntington's diseaseSyllabus objective16.2.5Gibberellin role in stem elongation• Gibberellin role in stem elongation: Le allele (functional enzyme) vs le allele (non-functional enzyme)Syllabus objective
