Legless Ampibians. Fire salamanders have moist, smooth skin like frogs, and long tails like lizards. Their four legs are so short that their belly drags on the ground. The bright markings on the fire salamanderâs back warn predators that it is poisonous. Its body oozes secretions that can be irritating to animals that try to eat it.
Making the world better, one answer at a time. Dominant is an allele that will always be expressed in a heterozygous individual. Recessive on other hand are traits that will only be expressed in a homozygous condition. Organisms receive one allele for each trait from each parent, thus you have two alleles for each trait.
If AA and aa individuals (homozygotes) show different forms of some trait (phenotypes), and Aa individuals (heterozygotes) show the same phenotype as AA individuals, then allele A is said to dominate, be dominant to or show dominance to allele a, and a is said to be recessive to A.