Get sequences from DDBJ.
Nuclear and mitochondrial rDNA sequences

http://www.ncbi.nlm.nih.gov/nuccore/V01270.1
http://www.ncbi.nlm.nih.gov/gene/170603
Rebuilt after removing the LIBRARY environment variable.

This was confusing as the code would not execute well when pasted from
a different window where exporting the variable was forgotten.