Genetic Growth Factors Practice Test

A student compares two inherited types of aquarium fish (Type G and Type H). Both groups are kept in tanks with the same water temperature, same tank size, same food amount, and same light cycle. After 12 weeks, the average length is recorded.

Which statement about genetics and growth is correct based on the evidence?

Two inherited varieties of corn (Variety M and Variety N) were planted in the same field plot with equal spacing, the same fertilizer, and the same watering schedule. After 9 weeks, students measured average plant height.

What evidence shows a genetic influence on growth?