Final answer:
Inbred strain of plants with a mean height of 24 cm suggests that genetic traits are consistent.
Step-by-step explanation:
The provided information suggests that genetic traits are consistent in the inbred strain of plants with a mean height of 24 cm. Inbreeding involves mating plants that are genetically similar, which reduces genetic diversity in the population. As a result, the offspring inherit similar genetic traits, leading to consistency in traits like height.