c) Both maternal and paternal DNA
A trait of an organism is influenced by both maternal and paternal DNA. It is passed down from one generation to another through genes found on the chromosomes. During sexual reproduction, both mother and father pass their genes to their offspring through gametes thus, determining their traits or characteristic features.
- The trait that first appears or is visibly displayed in the organism is called the dominant trait.
- Dominant traits are always expressed when the connected allele is dominant, even if only one copy of the dominant trait exists.
- The trait that exists at the gene level but is masked and does not show itself in the organism is called the recessive trait.
- Recessive traits are expressed only if both the connected alleles are recessive. If one of the alleles is dominant, then the associated character is less likely to manifest.