ok there is a such thing called a punnet square you can label them by putting the trait in one of those
A piece of DNA which controls a trait is a gene variations of a gene are called alleles. If you mean "controls how much a particular trait is expressed" then you would be dealiung with the promoter region of a gene which is near the start and controls how strongly a gene is expressed.
A trait
When natural selection favors extreme variations of a trait (ex. Biggest & Smallest)
Because there has to be more than one or we would be all the same
Pedigrees
The two extreme variations in a are trait are favored in disruptive selection.
Variations
A piece of DNA which controls a trait is a gene variations of a gene are called alleles. If you mean "controls how much a particular trait is expressed" then you would be dealiung with the promoter region of a gene which is near the start and controls how strongly a gene is expressed.
matation in somatic
When more than one gene influences that particular trait.
There is no particular relationship between organisms that have identical alleles for a particular trait.
When it comes that a particular trait being spread though a population, it is called reproduction.
Organisms that have two identical alleles for a particular trait are said to be? homozygous
Has one dominant and one recessive gene for that particular trait.
Mate 2 dogs that have the desired trait.
true
A trait