Analysis of Stage-Specific
   Gene Expression
Northern Hybridization
RT-PCR
Differential Display, Subtraction Library,
Serial Analysis of Gene Expression (SAGE)
Expressed Sequence Tags (EST)
Real-Time PCR
Microarry
Analysis of 10,000-50,000 messages in a transcriptome will generate a relevant profile of gene expression within a cell, providing a quantitative measurement of
transcripts for gene discovery.