IB Biology Topic D3.2 Inheritance (SL/HL) covers syllabus content as part of Topic D3: Organisms under Theme D: Continuity and Change. Use these notes, questionbank, videos, flashcards, and lessons to review the topic, practise exam questions, and move between notes, videos, flashcards, and lessons where available.
D3.2 Inheritance is part of Topic D3: Organisms under Theme D: Continuity and Change.
What this topic covers
D3.2.1 Production of haploid gametes in parents
D3.2.2 Methods for conducting genetic crosses in flowering plants
D3.2.3 Genotype as the combination of alleles inherited by an organism
D3.2.4 Phenotype
D3.2.5 Effects of dominant and recessive alleles on phenotype
D3.2.6 Phenotypic plasticity
D3.2.7 Phenylketonuria
D3.2.8 Single-nucleotide polymorphisms and multiple alleles in gene pools
D3.2.9 ABO blood groups as an example of multiple alleles
D3.2.10 Incomplete dominance and codominance
D3.2.11 Sex determination in humans and inheritance of genes on sex chromosomes
D3.2.12 Haemophilia as an example of a sex-linked genetic disorder
D3.2.13 Pedigree charts to deduce patterns of inheritance of genetic disorders
D3.2.14 Continuous variation due to polygenic inheritance and/or environmental factors
D3.2.15 Box-and-whisker plots to represent data for a continuous variable such as student height
D3.2.16 Segregation and independent assortment of unlinked genes in meiosis (HL)
D3.2.17 Punnett grids for predicting genotypic and phenotypic ratios in dihybrid crosses (HL)
D3.2.18 Loci of human genes and their polypeptide products (HL)
D3.2.19 Autosomal gene linkage (HL)
D3.2.20 Recombinants in crosses involving two linked or unlinked genes (HL)
D3.2.21 Use of a chi-squared test on data from dihybrid crosses (HL)