Bio/Biochem · 1C

Genetics and evolution

Content category 1C. 19 questions in 4 sets, each with reasoning for every answer choice.

Set 1 · Evolution

  1. Founder effect vs. bottleneck effecteasy
  2. Stabilizing vs. directional vs. disruptive selectioneasy
  3. Analogous structures and convergent evolutionhard
  4. Kin selectionhard
  5. X-linked recessive: children of an affected fathereasy

Set 2 · Inheritance patterns

  1. Penetrance vs. expressivitymedium
  2. Heteroplasmy in mitochondrial diseasemedium
  3. X-linked recessive: son of an obligate carrierhard
  4. Genomic imprintinghard
  5. Recombination frequency and map unitseasy

Set 3 · Mendelian genetics

  1. Gene order from recombination frequencieshard
  2. Nondisjunction in meiosis I vs. meiosis IImedium
  3. Codominance vs. incomplete dominanceeasy
  4. Dihybrid cross: probability of a double recessiveeasy
  5. Recessive risk: an unaffected sibling of an affected childhard

Set 4 · Population genetics

  1. Hardy–Weinberg assumptionseasy
  2. Hardy–Weinberg: calculating carrier frequencymedium
  3. Hardy–Weinberg: heterozygote frequencymedium
  4. Hardy–Weinberg for an X-linked traithard