Genetics: interactive lessons
Year 11 Science (Level 1). Each chapter is a narrated, animated lesson with activities and exam practice. Turn your sound on, and use Chrome for the Google voice.
The genetic toolkit
Genes, alleles, DNA structure, base pairing, Rosalind Franklin, homologous chromosomes and the genetic code.
Chapter 2 · LOs 14–20Mutations
Genetic variation, mutations, substitutions, deletions and insertions, frameshifts, and genetic disorders.
Chapter 3 · LOs 22–29Sexual reproduction and meiosis
Asexual vs sexual reproduction, fertilisation, meiosis as a reduction division, crossing over and independent assortment.
Chapter 4 · LOs 30–45Population genetics and natural selection
Gene pools, allele frequency, migration, natural selection, peppered moths, genetic drift, and the founder and bottleneck effects.
Chapter 5 · LOs 46–48, 52Inheritance and Punnett squares
Dominant and recessive alleles, genotype and phenotype, Punnett squares, expected vs observed ratios, and test crosses.
Chapter 6 · LOs 49–51Sex, pedigrees and sex-linked traits
Sex determination, reading pedigree charts, and sex-linked disorders like haemophilia and colour blindness.
Chapter 7 · LOs 53–63Biotechnology and DNA sequencing
Selective breeding, cloning and transgenesis (for or against), DNA sequencing, and genetic screening in NZ.
Mid Topic Test: LOs 1–45, chapters 1–4. End of Topic Test: LOs 1–59, chapters 1–7 (up to transgenesis). School Diploma Exam: all LOs, chapters 1–7.