For gene-probe spots and dyes, software calculates ratios {expression ratio} {gene expression ratio}: normalized expression level divided by normalized expression level for control gene. Average expression ratio is 1. If expression ratio is greater than or equal to 2 {up-regulated, expression} or less than or equal to 0.5 {down-regulated, expression}, genes have significant expression {differentially expressed}. Expression-ratio base-two logarithm averages 0, is +1 if expression ratio is 2, and is -1 if expression ratio is 0.5.
Biological Sciences>Genetics>Recombinant DNA>Gene Expression
4-Genetics-Recombinant DNA-Gene Expression
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Date Modified: 2022.0224