What type of trait is masked in an animal?

• A. Dominant trait
• B. Recessive trait
• C. Codominant trait
• D. Phenotypic trait

Answer: (B)

A trait that is masked in an animal is characterized as a recessive trait. In genetics, traits are often categorized based on how they are expressed in the presence of other traits. Recessive traits require two copies of the recessive allele to be fully expressed in the phenotype of the organism. If an individual has only one copy of a dominant allele, the dominant trait will be expressed, effectively masking the recessive trait.

The understanding of dominant and recessive traits is critical in genetics, as it influences breeding programs and the predictability of offspring traits. Recessive traits can remain hidden in a population, carried by individuals that do not exhibit the trait themselves unless they are paired with another individual that has the same recessive allele. This concept is foundational in genetic studies, making the identification of recessive traits crucial for understanding inheritance patterns in animals.