Biology  by Bradford
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D3.2 Inheritance: grass skirts

24 quick questions on inheritance, 19 of them at standard level, 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. Having one set of chromosomes
  2. One of the versions of a gene
  3. The alleles an organism carries
  4. Observable traits of an organism
  5. Two identical alleles of a gene
  6. Two different alleles of a gene
  7. Masks the other version in a pair
  8. Expressed only when two copies are present
  9. Clotting disorder, mostly in males
  10. Squares and circles across generations
  11. Both alleles expressed, e.g. AB blood
  12. Red crossed with white gives pink
  13. Three or more versions of one gene
  14. Recessive disorder managed by diet
  15. Inheritance of genes on the X chromosome
  16. Many genes controlling one character
  17. Smooth range of values, like height
  18. Graph of median, quartiles and range
  19. Unlinked genes go into gametes at random
  20. Mating tracking two genes at once
  21. On one chromosome, so inherited together
  22. Offspring with a non-parental allele mix
  23. Statistic comparing observed and expected
  24. Same genes, traits shift with conditions

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