It is not possible to study the genes that cause disease using the molecular clock.
Explanation:
The molecular clock technique is an important tool in molecular systematic, the use of molecular genetics information to determine the correct scientific classification of organisms or to study variation in selective forces. A nice aspect of molecular clocks is that different genes evolve at different rates, which gives us flexibility to date events throughout the history of life" Hedges points out. Broadly speaking, the evolution of important genes occurs more slowly than that of genes with less vital functions.
In order to develop a molecular clock, one would need: a sequence of molecules, the rate at which changes occur in a type of molecule and how much total change has occurred in a type of molecule from different species.
