Explain why it is important for plants to hold enzymes in their functional shapes

Many farmers prefer cattle without horns because it is safer for their herds. the allele for no horns (n) is dominant to the allele for the presence of horns (n). a farmer mates a male with horns to a heterozygous female without horns. what is the chance that the offspring will have horns?

Which would be the most useful source of evidence to support mcneill's contention?

What is the difference between a scientific hypotheses and a scientific theory?