Although many of these genes have functions related to sugar and cell wall metabolism, dissection of the trait requires genetic analysis.
Thus, obtaining varieties with a desirable trait requires a large population, efficient screening, and frequent follow-up purification of chimeras.
Every trait requires analysis of the trade-offs that limit its perfection.
Any evolutionary change of a trait requires a change in these mechanisms.
In this type of gene interaction, the production of one of the two phenotypes of colour trait requires the presence of dominant alleles of both the genes controlling the concerned trait.
Attaining these traits requires training the mind.
However, progeny testing for a complex trait requires the evaluation of many offspring (maybe as many as 15 20) to best estimate a dog's genetic potential.
Demonstration of sexually antagonistic selection for a given trait requires that several criteria be met.
Analysis of such a complex trait requires the use of novel analytical strategies that specifically address genetic interactions.
Adaptive evolutionary change at any given trait requires an association between the trait and fitness, plus the heritable transmission of the trait across generations [ 5].
