Question

study the punnett square for green and yellow pea - pod producing plants. which historical finding of genetics does this demonstrate?
environmental factors determine traits.
parents pass on all traits to all their offspring.
some traits are dominant to other traits.
different traits are inherited independently of each other.

Explanation:

1. Analyze Option A: Environmental factors influencing traits is not shown here, as the Punnett square focuses on genetic inheritance, not environment. Eliminate A.
2. Analyze Option B: Parents don't pass all traits to all offspring (e.g., recessive traits may not appear in all). The Punnett square here has only green pods in offspring, but that's about dominance, not passing all traits. Eliminate B.
3. Analyze Option C: The Punnett square has a yellow pod parent (recessive) and green pod parent (dominant, since all offspring have green pods). This shows green (dominant) masks yellow (recessive), demonstrating dominant traits over others. This fits.
4. Analyze Option D: Independent assortment (traits inherited independently) is about multiple traits (like seed shape and color), but here only pod color is shown. Eliminate D.

Answer:

C. Some traits are dominant to other traits.