Biology  by Bradford
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Natural selection and population genetics: grass skirts

17 quick questions on AP Biology topics 7.1 Introduction to Natural Selection, 7.2 Natural Selection, 7.3 Artificial Selection and 7.4 Population Genetics, each answered in a word or two. Print a sheet for each team, a key for the checker and a tick sheet, then tape the sheets to the board and race.

How it runs

  1. SnipA runner cuts one strip off the bottom of their team’s sheet.
  2. Answer as a pairBack at the table, they write the answer on the strip. No books.
  3. Get it checkedThe checker reads it against the key: you, or a student holding it.
  4. Back for the nextA tick earns the next strip. Wrong? Back to the table to try again.

The questions on this sheet

The checker’s key, with every answer, prints with the sheets.
  1. Better-suited variants leave more young
  2. Descent with modification
  3. Reproductive success in an environment
  4. Heritable trait raising fitness
  5. Humans picking parents for desired traits
  6. Ultimate source of new alleles
  7. Chance shifts in allele frequency
  8. Allele movement between populations
  9. All alleles in a population
  10. Favors one extreme of a trait range
  11. Favors the average, trimming extremes
  12. Favors both extremes over the middle
  13. Distant groups gaining similar traits
  14. Plant bred into broccoli and kale
  15. Population crash leaving few survivors
  16. Few colonists carry a sample of alleles
  17. Sickle cell carriers resisting malaria

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