How to distinguish transgenic pictures

According to the picture, it is impossible to judge whether to carry out transgenic. Generally speaking, transgenic crops can increase crop yield, improve quality, and improve drought resistance and cold resistance. Genetically modified crops can be divided into four categories.

1, Bt crops can resist pests and reduce the use of pesticides; This crop can produce a kind of protein which is toxic to some pests. This kind of protein exists in Bacillus thuringiensis, a common soil bacterium.

2. Herbicide-resistant crops.

3. antiviral crops;

4. Nutritionally fortified crops; Its specific nutrients and vitamins are high.

Extended data:

Harmfulness of genetically modified crops;

1. Ecological hazards of genetic crops: natural crops are not afraid of pests, otherwise there will be no such crops in nature. After the first hybridization of crops, it is similar to gene transfer, but the proportion of gene change is very low, so people will begin to be afraid of pests.

No matter how many times crops cross, the proportion of gene changes is always very low, and the highest is no more than 3%, which is the fundamental function of nature to maintain life. In this way, the harm to the human body is also very small.

2. In transgenic plants, the DNA after gene transformation is unstable: the transgenic genes often remain inactivated, some or all of the transgenic DNA will be lost, and even the transgenic DNA retained in the breeding period will be lost.

Baidu encyclopedia-genetically modified crops

Baidu encyclopedia-genetically modified crops

Baidu Encyclopedia-Transgenic Technology