Final answer:
Religious opposition to genetic research in America during the 1920s was influenced by the belief that it went against divine creation, but other factors were also involved.
Step-by-step explanation:
The religious opposition to "tampering with God's creation" did play a role in limiting genetic research in America during the 1920s, but it was not the sole reason. The conflict between religious beliefs and scientific advancements was a prevalent issue during this time period. Many religious individuals believed that genetic research went against the idea of divine creation and therefore opposed it. However, it is important to note that not all Americans held this viewpoint, and there were other factors at play as well.