About the disadvantages of cloning。。。。。。。。。

Advantages: 1. The improved variety (hybrid rice is also a kind of clone) can enrich people's material life, reduce the cost of animal husbandry and improve the efficiency. can alleviate the food crisis;

2. Genes (have a significant impact on health care);

3. Organ transplantation, which can lead to diseases such as organ necrosis;

4. Protect the environment and endangered animals and plants, and preserve and disseminate animal species resources.

Disadvantages: 1. Cloning will reduce genetic variation, and the individuals produced by cloning have the same genes and the same disease sensitivity, and a disease can destroy the entire population generated by cloning;

2. The use of cloning technology will make people tend to reproduce the most valuable individuals in the existing population in large numbers, rather than promoting the survival of the fittest in the whole population according to the laws of nature. In this sense, cloning interferes with natural evolutionary processes;

3. Cloning technology is an expensive technology that requires a lot of money and the involvement of biological professionals, and the failure rate is very high. Although more advanced technologies have been developed, the success rate is only 2-3%;

4. Genetically modified animals increase the risk of disease transmission;

5. The application of cloning technology to the human body will lead to artificial control of the genetic traits of offspring;

6. Cloning technology can also be used to create "superhumans", or people with strong physiques but low intelligence. Moreover, if cloning can be used effectively in humans, males will lose their genetic significance.

7. The impact of cloning technology on family relationships will also be huge. A child born from a DNA clone of his father's DNA can be seen as his father's twin brother, but with a delay of several decades.

One. Using biotechnology such as cloning, the genotype of crops is changed to produce a large number of new varieties that are resistant to diseases, insects, salinity, etc., thereby greatly increasing the yield of crops.

Two. Cultivate a large number of high-quality livestock, such as breeding some good meat quality cattle, sheep and pigs, etc., you can also cultivate some dairy cows with high milk production and rich nutrients required by the human body.

Three. Significant impact on health care, such as relying on molecular cloning technology to understand disease-causing genes and propose molecular biological mechanisms of disease generation; Seeking a wider range of ** for organ transplantation, introducing the genes of human organ tissues and immune system into the animal to grow the required human organs, can reduce immune rejection and improve the success rate of transplantation.

Four. Protecting the environment and endangered flora and fauna, reproducing species by cloning technology. Fifth, it provides more suitable animals for medical research, which greatly improves the accuracy and safety of the test.