a) Specific activity
i) One labelled dNTP
ii) Two labelled dNTP
iii) Three labelled dNTP
Figure 3. The use of [α–32P]dNTPs in the Megaprime DNA labelling
system (see notes on page 26).
23
Specific activity of the labelled
product (dpm/µg) x 109
5
4
3
2
1
(iii)
(ii)
(i)
0 10 20 30 40 50 60 70 80 90 100
Total input label (pmols)