When using DNA analysis to screen a new family to identify a genetic mutation that has caused porphyria,what must be examined?

Question

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When using DNA analysis to screen for a genetic mutation that has caused porphyria, all exons with promoters and flanking intron sequences around the mutation must be analyzed. This is because porphyria is caused by mutations in specific genes, and these mutations may be located in any of the exons or regulatory regions of those genes. Therefore, it is important to analyze all relevant regions to identify any potential mutations that may be causing the disease.

When Using DNA Analysis to Screen a New Family to Identify