(iii) Genetics: Mendel's laws of inheritance and sex-linked inheritance of diseases.
- The three laws of Mendel.
- Monohybrid cross – phenotype and genotype.
- Dihybrid cross – Only phenotype.
- The following terms to be covered: gene, allele, heterozygous, homozygous, dominant, recessive, mutation, variation, phenotype, genotype.
- Sex determination in human beings.
Sex linked inheritance of diseases to include only X-linked like haemophilia and colour blindness.