IB Biology Topic D3.2: Inheritance Notes

D3.2.1 Production of haploid gametes in parents

5 minute read

D3.2.2 Methods for conducting genetic crosses in flowering plants

6 minute read

D3.2.3 Genotype as the combination of alleles inherited by an organism

2 minute read

D3.2.4 Phenotype

3 minute read

D3.2.5 Effects of dominant and recessive alleles on phenotype

4 minute read

D3.2.6 Phenotypic plasticity

5 minute read

D3.2.7 Phenylketonuria

5 minute read

D3.2.8 Single-nucleotide polymorphisms and multiple alleles in gene pools

6 minute read

D3.2.9 ABO blood groups as an example of multiple alleles

3 minute read

D3.2.10 Incomplete dominance and codominance

3 minute read

D3.2.11 Sex determination in humans and inheritance of genes on sex chromosomes

6 minute read

D3.2.12 Haemophilia as an example of a sex-linked genetic disorder

6 minute read

D3.2.13 Pedigree charts to deduce patterns of inheritance of genetic disorders

5 minute read

D3.2.14 Continuous variation due to polygenic inheritance and/or environmental factors

5 minute read

D3.2.15 Box-and-whisker plots to represent data for a continuous variable such as student height

6 minute read

D3.2.16 Segregation and independent assortment of unlinked genes in meiosis (HL)

5 minute read

D3.2.17 Punnett grids for predicting genotypic and phenotypic ratios in dihybrid crosses (HL)

6 minute read

D3.2.18 Loci of human genes and their polypeptide products (HL)

5 minute read

D3.2.19 Autosomal gene linkage (HL)

4 minute read

D3.2.20 Recombinants in crosses involving two linked or unlinked genes (HL)

6 minute read

D3.2.21 Use of a chi-squared test on data from dihybrid crosses (HL)

8 minute read