What are the GMOs? What are the genetically modified animals

Every living thing in nature has different life characteristics, and the substances that maintain these life characteristics are the genes (DNA) in the nucleus. Genetically modified organisms (GMOs) are organisms that artificially modify their DNA to achieve a specific purpose. The usual practice is to extract a gene fragment of an organism with a special function and add it to the target organism through genetic technology.

Genetically modified crops are not much different in appearance and taste similar to natural crops, but some genetically modified crops have added genes that improve nutrients, while others can adapt to harsh natural environments and improve yield and quality.

According to incomplete statistics, in 1996, the cultivated area of genetically modified crops in the world was 1.7 million hectares, and in 2000 it increased to 44.2 million hectares, an increase of nearly 30 times in just four years. Among them, the cultivated area of genetically modified soybean and corn accounts for about 80% of the total cultivated area. In the food industry, soybeans and corn, as well as their processed products, are essential raw materials, and foods made from these genetically modified raw materials are also genetically modified foods.

Nowadays, genetically modified organisms mainly include genetically modified plants, genetically modified animals, and genetically modified microorganisms. Among them, the transgenic plants are mainly used for the purpose of disease and insect resistance, herbicide tolerance, quality improvement and agronomic traits. Genetically modified animals include transgenic sheep, cattle, pigs, fish, monkeys, etc.; Genetically modified microorganisms mainly include food, medicine, plants, animals, environmental purification and other types.

Genetically modified is the use of biotechnology to isolate a certain gene from an organism and then implant it into another organism to create a new artificial organism. For example, scientists believe that a gene in Arctic fish has a freeze-protection effect, so they extract it and implant it into tomatoes, and a new breed of cold-resistant tomatoes is a genetically modified organism. Foods that contain genetically modified organisms are called genetically modified foods.

Genetically modified organisms (GMOs) have foreign genes and are new species to the natural ecosystem, and if released into the environment, they will change the competition between species, destroy the original natural ecological balance, and lead to species extinction and loss of biodiversity. Genetically modified organisms (GMOs) reproduce themselves in nature and cross with their close relatives, resulting in the uncontrollable transmission of foreign genes in nature, resulting in irreversible genetic contamination.

There are the following 4 genetically modified animals, namely: transgenic super rats, transgenic carp, transgenic goats, and transgenic dairy cows.

1. Genetically modified super rats:

The process of transferring (or implanting) foreign genes into the genome of an organism is called transgenic. It is generally accepted that successful GM work began in 1981. In 1982, the British journal Nature published an article in which two American experimental teams jointly developed a transgenic super mouse.

2. Genetically modified carp:

Under the leadership of Academician Zhu Zuoyan, scientists from the fish transgenic engineering group of the Institute of Hydrobiology of the Chinese Academy of Sciences injected the growth hormone gene of grass carp into the fertilized eggs of carp and cultivated a transgenic carp F1 generation with grass carp growth hormone gene and another transgenic triploid carp "Ji Carp" with grass carp growth hormone gene.

3. Genetically modified goats:

China's first genetically modified goats "Lianlian", "Tiantian" and "Yunyun" made a wonderful appearance on December 25, 2000 and became known to outsiders. They all have the od-antitrypsin gene transgenic from humans. They produce goat's milk that can be extracted from al-antitrypsin.

4. Genetically modified cows:

It is a genetically modified animal, which is a dairy cow breed in which scientists genetically modify dairy cow embryos through genetically modified technology to achieve the desired results.

Plants:Small tomatoes (cherry tomatoes), tomatoes, soybeans, etc.

There are 17 kinds of genetically modified organisms in 5 categories that are included in the GMO label catalogue and sold on the market, all of which need to be labeled in China. Genetically modified foods on the market such as:Soybean oil, rapeseed oil and blended oils containing genetically modified ingredients are labeledConsumers only need to carefully inquire at the time of purchase to identify.

Plants: small persimmons (cherry tomatoes), tomatoes, soybeans, etc.

Animal: carp for meat.