Mark the tool each clue names

Exercise and reference answers

Clues and terms

1. Clue

   Nuclease that removes nucleotides from the ends of a DNA molecule

   Item

   Exonuclease

2. Clue

   Nuclease that makes its cuts at specific positions within the DNA

   Item

   Endonuclease

3. Clue

   Acts on cut DNA molecules and joins their ends together

   Item

   DNA ligase

4. Clue

   Sequence where replication starts, and it also controls the copy number

   Item

   Ori

5. Clue

   Overhanging single stranded stretches that bond with their cut counterparts

   Item

   Sticky ends

6. Clue

   Natural polymer from sea weeds used as the sieving matrix in the gel

   Item

   Agarose

7. Clue

   Cutting the separated band out of the gel and extracting DNA from that piece

   Item

   Elution

8. Clue

   Enzyme that breaks bacterial cells open so their DNA is released

   Item

   Lysozyme

9. Clue

   Tumour inducing ring of Agrobacterium, now a disarmed plant cloning vector

   Item

   Ti plasmid

Instructions

Read the clue, then tap the cell it names. Complete a line of three to win.

Explanation