Biology HL

Chapter 4: Genetics

Connect chromosome organization to inheritance, predict simple and complex crosses, infer family genotypes, and test linkage models with recombination and chi-squared evidence.

1 simulation entries

Chromosome workspace

Condense chromosomes, compare homologous loci and reveal trisomy without confusing chromosome number with chromatid number.

Appears in: 4.1 Genomes, Chromosomes and Homologues, 4.1 Genes, Karyotypes and Sex Chromosomes, 4.2 Mendel, Segregation and Punnett Grids, 4.2 Codominance, Multiple Alleles and Incomplete Dominance, 4.2 Sex Linkage, Pedigrees and Genetic Conditions, 4.2 Polygenic Inheritance and Phenotypic Plasticity, 4.2 Dihybrid Crosses, Linkage and Recombination, 4.2 Chi-squared Testing of Genetic Ratios, Chapter Synthesis: From Chromosome to Conclusion

Alleles · probability · evidence

Genetics and inheritance laboratory

KARYOGRAM WORKSPACE · REPLICATED CHROMOSOMES12321sexLOCUS ≠ ALLELEallele Aallele aSame locus on homologues · one chromosome inherited through each gamete