Question

1. which plant traits in the case are most likely controlled mainly by genetics, and why?

Explanation:

To answer this, we analyze plant traits and genetic control:

Traits controlled mainly by genetics are inherited (not much influenced by environment/care). Examples: flower color, leaf shape, plant height (if due to species’ genetic code), or seed type. For instance, if a plant has purple flowers (vs. environmental factors like soil pH changing it slightly), flower color is genetic—DNA determines pigment production. Structural traits (e.g., stem structure, root type) or species - specific traits (e.g., being a cactus with spines) are genetic because they’re inherent to the plant’s DNA, not easily altered by care (like watering/light, which affect growth rate but not the trait’s core identity).

Answer:

Traits like flower color, leaf shape, or plant species - specific structures (e.g., cactus spines, pea plant’s seed shape) are most likely genetic. Reason: These traits are determined by DNA (inherited from parent plants) and not significantly changed by care (e.g., watering, light) alone. For example, a rose’s thorns or a sunflower’s flower structure are coded in genes, so genetics mainly control them.