Word forms: 3rd person singular present tense investigates , present participle investigating , past tense , past participle investigated. verb. If someone, especially an official, investigates an event, situation, or claim, they try to find out what happened or what is the truth.
Gene cloning is a method for making many identical copies of a gene by inserting the gene into a living host cell.Under appropriate conditions, the host cell will replicate the foreign DNA along with its own DNA whenever it divides.ene cloning is a method for making many identical copies of a gene by inserting the gene into a living host cell.
Gene expression profiling is a technique used in molecular biology to query the expression of thousands of genes simultaneously. In the context of cancer, gene expression profiling has been used to more accurately classify tumors.urrent cancer research makes use primarily of DNA microarrays in which an arrayed series of microscopic spots of pre-defined DNA oligonucleotides known as probes are covalently attached to a solid surface such as glass, forming what is known as a gene chip.