A graduate student working on a project is attempting to isolate a gene from yeast. He identifies the restriction sites to cut the gene of interest out. But after several attempts, fails to do so. What could be the possible reason for the failure?

A graduate student working on a project is attempting to isolate a gen

1.	A graduate student working on a project is attempting to isolate a gene from yeast. He identifies the restriction sites to cut the gene of interest out. But after several attempts, fails to do so. What could be the possible reason for the failure?
Answer» A graduate student working on a project is attempting to isolate a gene from yeast. He identifies the restriction sites to cut the gene of interest out. But after several attempts, fails to do so. What could be the possible reason for the failure?