alleryStart learning →A trait is best defined as:
AA single chromosome from one parent
BA protein produced by an active gene
CA variation in a heritable characteristic
DA permanent change in a DNA sequence
Answer & Solution
Correct answer: C. A variation in a heritable characteristic
1. Characteristic and trait are not interchangeable words in genetics.
2. Flower colour is a characteristic; violet and white are its two forms.
3. A trait is defined as a variation in the physical appearance of a heritable characteristic.
4. A DNA change is a mutation, which may or may not alter a trait.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 12 'Mendel's Experiments and Heredity', sections 12.1-12.3_
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