Although the Manhattan plot is useful for a small number of traits, problems arise with a fully genome-wide screen where millions of SNPs, for example in the human genome, are tested for association with hundreds or thousands of traits.
TRAIT #2: PROBLEM SOLVER Able to achieve solutions to difficult problems by identifying and resolving key issues.
As researchers analyzed its genetic roots and relations to the brain's dopamine system, they linked this trait with problems like attention deficit disorder, compulsive spending and gambling, alcoholism, drug abuse and criminal behavior.
These impairments manifest as impaired cognitive control of mood, pessimism, reactive aggressive traits, impaired problem solving, over-reactivity to negative social signs, excessive emotional pain, and suicidal ideation, leading to suicidal behaviour.
This enables us to differentiate various levels of phenotypic trait, unlike problems of case-control classification.
Socioeconomic inequalities could also be documented for early temperamental traits and problem behaviour in young children [ 67].
Handedness is far from being the only common trait where problems have arisen in finding genetic associations.
Some of the reasons for this have been extensively studied, including trait identity problems, sample collection, population resampling and epigenetic variation [ 2].
It is possible, however, that the frequency of the mutation concept may have been even higher on the final exam, had a trait-gain problem been presented.
