Which option shows all allele combinations that can be used to represent a purebred animal?(1 point) Responses tt tt Tt Tt TT or tt TT or tt TT or Tt
The option that shows all allele combinations that can be used to represent a purebred animal is tt or TT.
The option that shows all allele combinations that can be used to represent a purebred animal is TT or tt.
To determine the allele combinations that can represent a purebred animal, it is important to understand the concept of dominant and recessive alleles. In genetics, an individual has two copies or alleles for each gene, one inherited from each parent.
If an animal is purebred, it means it is homozygous for a particular trait, meaning it has two identical alleles for that trait. There are two types of alleles, dominant alleles (represented by an uppercase letter) and recessive alleles (represented by a lowercase letter). The dominant allele will always be expressed in the phenotype, while the recessive allele will only be expressed if there are no dominant alleles present.
In the given options, we have two alleles to represent the trait: T (dominant allele) and t (recessive allele).
The correct answer that shows all possible allele combinations for a purebred animal would be:
TT or tt
In this case, if an animal is purebred, it will either have two dominant alleles (TT) or two recessive alleles (tt) for the given trait.