We cannot distinguish between GMO soybeans and non-GMO soybeans in terms of appearance and taste.

Generally we can only distinguish them by origin and price.

Domestic supermarkets generally sell non-GMO Northeast soybeans, which are labeled. The cheapest soybeans on the market are generally genetically modified, which is due to the U.S. government's agricultural subsidies and the U.S. empire's monopoly of the four major multinational corporations of grain merchants, resulting in imported genetically modified soybeans being cheaper than domestically produced virgin soybeans.

Expanded Information

GMO soybeans are resistant to the herbicide, glyphosate (toxic drop mix). Glyphosate kills regular soybean plants along with weeds. This type of soybean is known as genetically modified soybean. And this genetically modified technology is finally moving out of labs and test fields and into everyday farming of crops like corn, soybeans and cotton.

Non-GMO soybeans are genetically altered by nature's superior selection. This eliminates the potential harm that genetically modified foods can cause to the human body. It is safe and reliable for long-term consumption.

Reference? Genetically modified soybeans - Baidu Encyclopedia