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Table 1 Summary of nuclear DNA quantification by real time PCR depending on different substrates.

From: Human evolution in Siberia: from frozen bodies to ancient DNA

 

Substrates

 

Bones

Teeth

Hairs

Number of samples

64

18

12

Number of DNA extracts quantified

133

18

41

Mean quantity of DNA (minimum-maximum observed)

0.23 ng.μl-1

(0-2.32 ng)

0.56 ng.μl-1

(0.003-1.54 ng)

0.12 ng.μl-1

0-0.945 ng)

Frequency of DNA extracts yielding a DNA concentration > 500 pg.μl-1

18.86%

50%

7.30%

Frequency of DNA extracts yielding a DNA concentration comprised between 500 and 100 pg.μl-1

18.86%

38.90%

19.50%

Frequency of DNA extracts yielding a DNA concentration below the detection limit

20.30%

5.5%

19.50%

Frequency of DNA extracts containing PCR inhibitors

8.27%

0

0