A researcher is studying a metabolic disorder.To identify the gene or genes linked with the disorder's phenotype, he compares the chromosomal DNA of normal volunteers and clinical patients.Despite a great deal of work, he is unable to identify a gene.Another research group, however, reports a gene.Which of the following may account for the researcher's experimental failure?

Question

Quizplus · Accepted Answer

It is possible that the researcher did not analyze all the genes found in a human cell, therefore missing the gene linked to the disorder's phenotype. It is also possible that the gene was not previously discovered or that the other research group made a mistake. However, options A, B, D, and E do not seem likely to account for the experimental failure.

A Researcher Is Studying a Metabolic Disorder