Why do animals and plants mutate after being "nuclear polluted"?

The reason why animals and plants will mutate after being "nuclear polluted";

When the cells of animals and plants divide, the process of DNA replication is easily interfered by external factors, and the nuclear radiation produced by "nuclear pollution" is one of the interference factors to DNA. Once the replication of DNA is disrupted, the function and characteristics of splinter cell may be changed due to the change of DNA.

As more and more cells change this DNA, it produces individual variation.

Extended data:

Humans live in a radioactive environment.

In fact, human life has never left radioactivity, which is natural radioactivity and mainly comes from three aspects:

1。 Cosmic rays;

2。 Radioactivity on the ground and in buildings;

3。 Radioactivity in the human body.

A small amount of radioactivity will not endanger health.

People's radioactive activities

Many human activities are inseparable from radioactivity. For example, the radiation dose of air, food and water consumed by people is about 0.25 mSv/ year. With a luminous watch, 0.02 millisieverts per year; Traveling 2000 kilometers by plane is about 0.01msv; Smoking 20 cigarettes a day, 0.5- 1 millisieverts per year; An x-ray examination is 0. 1 mSv and so on.

Radiation dose increase caused by nuclear power

Expert research and calculation show that 3/4 of the collective radiation dose of all mankind comes from nature. About 1/5 comes from medical treatment and diagnosis, and the share of nuclear power is 1/400. Assuming that the life expectancy of human beings in the world is 60 years, smoking a pack of cigarettes every day will eventually reduce life expectancy by 7 years, while the impact of nuclear power is 24 seconds.

For nuclear radiation pollution, that is, radioactive pollution, ordinary people often only pay attention to the harm caused by radioactive substances produced in some special workshops of nuclear radiation factories in modern scientific research, or the influence and harm caused by radioactivity produced by X-ray treatment in hospitals, without considering that there will be radioactive pollution sources in life.

In fact, radioactive substances in life can enter the human body in many ways, causing chronic damage to the body. In order to prevent the harm of radioactive pollution sources to human health in life, the relevant law enforcement departments should strengthen the publicity of environmental awareness. On the other hand, the government and law enforcement departments should strengthen the management of radioactive substances and regularly monitor the goods that are easily contaminated by radioactive substances.

Pay attention to the radioactive pollution in the room

With the development of industry, industrial waste residue is often used as building materials, which may cause some radioactive substances in building materials. Radioactive gases and their sub-products are produced after radioactive decay, suspended in indoor air, and radon and its sub-products emit high-energy alpha rays (particles). If people inhale these gases, they will irradiate people's lung tissue.

If you are exposed to radiation for a long time, it is easy to produce diseases such as bronchitis and lung cancer. According to foreign reports, radon is a naturally occurring radioactive gas in most family rooms. If it is mixed with smoke, it will have a fatal impact. Radon is the pathogenic factor of lung cancer. In addition, slate materials such as granite used to decorate rooms also contain a certain amount of radon.

Especially when the ventilation is poor, it can lead to indoor radioactive pollution. According to the monitoring, indoor radon is mostly accumulated in poorly ventilated places. It is a good measure to open the windows of the room frequently to promote air circulation and dilute radon. The stone (board) used in house decoration should be used selectively.

Reference: Nuclear Radiation _ Baidu Encyclopedia?

Nuclear pollution _ Baidu Encyclopedia