Biology  by Bradford
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Unit 5, Heredity: grass skirts

47 quick questions across the whole of Unit 5 (a fresh 30 on each print), 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. Division making four haploid gametes
  2. Having one set of chromosomes (n)
  3. Having two sets of chromosomes (2n)
  4. Sex cell such as a sperm or egg
  5. Fusion of two gametes to restore 2n
  6. Same-size pair carrying the same gene loci
  7. Joined copies that part in meiosis II
  8. Stage when crossing over happens
  9. Stage when homologous pairs separate
  10. Close pairing of homologs early in meiosis
  11. Non-sister chromatids exchange segments
  12. Visible X-shaped contact between homologs
  13. Random orientation of pairs at metaphase I
  14. Alternative version of a gene
  15. Allele combination, e.g. BB, Bb or bb
  16. Observable trait an organism shows
  17. Having two identical alleles for a gene
  18. Having two different alleles for a gene
  19. Allele shown in Aa; its partner is hidden
  20. Allele hidden in a heterozygote
  21. Each gamete gets one allele of a pair
  22. Aa × Aa, giving a 3:1 ratio
  23. AaBb × AaBb, giving 9:3:3:1
  24. Unknown × homozygous recessive
  25. Grid that predicts offspring genotypes
  26. Family tree tracing a trait
  27. Probability of A and B: multiply them
  28. Checks if observed data fit expected
  29. Failure of chromosomes to separate
  30. Condition caused by an extra chromosome 21
  31. Picture of a cell's chromosomes in pairs
  32. Loci close together on one chromosome
  33. Gene carried on the X chromosome
  34. Healthy person with one recessive allele
  35. Heterozygote looks in between, e.g. pink
  36. Both alleles shown, e.g. roan coat
  37. More than two versions of one gene, as ABO
  38. Height or skin color, set by several loci
  39. One gene affecting several traits
  40. Gene at one locus masking another locus
  41. Trait passed only from mother to offspring
  42. Common X-linked vision disorder
  43. Late-onset dominant brain disorder
  44. Same genes, form changes with conditions
  45. Sets the sex of many turtle hatchlings
  46. Turns hydrangea flowers blue or pink
  47. Pigment made more under UV light

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