Biology  by Bradford
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A1.2 Nucleic acids: grass skirts

22 quick questions on nucleic acids, 15 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. Genetic material of all living organisms
  2. Nucleic acid usually single-stranded
  3. Monomer of DNA and RNA
  4. Pentose sugar in each DNA nucleotide
  5. Alternates with sugar in DNA's backbone
  6. Part of a nucleotide that carries the code
  7. Base found in RNA but not in DNA
  8. Base in DNA that pairs with adenine
  9. Shape of two DNA strands wound together
  10. A always opposite T, and C opposite G
  11. Order of A, C, G and T along a strand
  12. Pentose of RNA, with one more oxygen
  13. Reaction linking nucleotides into a chain
  14. Strands running in opposite directions
  15. Triplet meanings shared by nearly all life
  16. Two-ringed base such as adenine or guanine
  17. Single-ring base: C, T or U
  18. Bead of DNA coiled round a protein core
  19. Positively charged protein packing DNA
  20. Strand tip where nucleotides are added
  21. Phage test: DNA, not protein, enters host
  22. Ratio: purines equal pyrimidines in DNA

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