What are the gene preservation technologies in the world?

In the world, there are gene preservation technologies such as liquid nitrogen preservation technology, electric refrigeration preservation, low humidity dormancy preservation technology, nano molecular coating technology, and dried blood film preservation method, and these technologies have made significant contributions to disease research.

1. Liquid nitrogen preservation technology, DNA is stored in liquid nitrogen at -196°.

2. Electric refrigeration preservation technology, -80°, long-term storage.

3. Nano molecule coating technology, nano molecules and DNA particles form a core-shell structure for preservation, and the price is high.

4. Dried blood tablet preservation technology, the blood is dropped onto the sampling paper and sealed for preservation.

Liquid nitrogen preservation technology, electric refrigeration technology, cryogenic dormancy preservation technology, nano molecule encapsulation technology, etc. These are kept for a long time.

The first is liquid nitrogen preservation technology, which preserves DNA in liquid nitrogen at more than minus 190 degrees Celsius, and the second is electro-refrigerated preservation, which preserves DNA samples in an environment of minus 80 degrees.

There are a total of six gene preservation technologies, the most common being liquid nitrogen preservation technology and electric refrigeration preservation technology, liquid nitrogen preservation technology is the liquid nitrogen environment of -196 for gene preservation.

Gene preservation can enable infant DNA to be stored at room temperature for a long time, and longitudinal comparison of genes preserved in infancy with diseased cell genes can help to find specific sites where gene mutations occur, thereby helping to improve the accuracy and safety of genetic diagnosis and gene **.

Newborns nowadays will take genetic preservation. In developed countries such as the United States, the European Union, and Australia, there are institutions that provide gene preservation services. The patented technology it adopts has the characteristics of solid-state storage at room temperature, which can realize self-storage at home.

Answer: The role of gene preservation: longitudinal comparison of genes preserved in infancy with genes of diseased cells can help find specific sites where gene mutations occur, thereby helping to improve the accuracy and safety of genetic diagnosis and gene **.

Gene preservation: It is a technology that isolates, extracts, and purifies DNA from oral mucosal epithelial cells, and preserves DNA through biotechnology.

It is not known whether the exact truth is used by anyone.

Regular graduate students should be used.

Question: What is the role of cell storage for people over 60 years old Is it still necessary?

Question: Okay, thank you! They say that when you are seventy years old, you use it as if it were a sixty-year-old spirit, is it true, teacher?

Thank you, teacher, for asking questions! Otherwise, I'll have to serve soup again.

Want to know the answer? You can ask again about the specifics :)

In the long run, it's still valuable. Gene preservation for babies may never be used, or maybe you can't tell when you will use it, just like an extra layer of protection.

Gene preservation may sound mysterious, but what does the future of medicine look like? We might as well boldly imagine that in ancient times, we used decoction when we were sick, and the bitter medicine had to be boiled for a long time, which was quite troublesome to treat, and later with Western medicine, it was much more convenient to take injections and medicines, so the future will definitely be more accurate and effective than now.

What's more, this trend has already been manifested.

On November 15, 2015, researchers in the United Kingdom used genetic technology to identify a child with drug-resistant leukemia for the first time.

On December 19, 2015, Hexun News reported that Chinese scientists were selected as one of the top ten people of the year by Nature for their "genetic scissors" research.

On June 21, 2016, the National Institutes of Health approved the first human clinical trial using CRISPR gene technology, known as "gene scissors", to ** cancer.

Genes are the most essential thing in our life form, and if conditions permit, it is of course a wiser choice to be able to preserve genes. The specific role is roughly the following six aspects:

1: The preserved baby genes can be used for the diagnosis of hereditary diseases and health management;

2: Contribute to the early diagnosis, prevention and ** of diseases;

3: Guide individualized medication to reduce harm to the baby;

4: Genetic comparison of missing children, 100% accurate search for children;

5: Through the physical examination in the process of children's growth, the occurrence and development of diseases, early intervention and **;

6: Leave the original data for the real genes of the future.

The material of the genetic recombination is a fragment of a gene (containing the gene of interest). So, how are these gene fragments used for genetic recombination preserved? The cells of a living organism contain the entire code of heredity of that organism.

In order to modify an organism and hail, a fragment containing the gene of interest is introduced into the cells of the organism to breed a genetically modified organism (animal, plant or microorganism) with a foreign gene. The problem is that this fragment containing foreign genes cannot be found anytime and anywhere, and must be stored in one place in advance, which is the gene library. It is the "storehouse" where genes are stored.

The whole gene of an organism is on the DNA inside the cell, which is a long strand. All the secrets of commanding creatures are on it. For the convenience of genetic recombination, genetic engineering scientists first attach all the DNA in an organism cell or all the fragments of DNA on the chromosome to the gene vector randomly, and then transplant it into the host cell for proliferation to form a clonal reproduction line of each fragment.

In this way, all the genetic fragments of the organism are copied in the host cell.

It's like making a movie, first shoot a storyboard (equivalent to a gene fragment), shoot all the shots and then edit them, and add a recording, and it's a movie. With this movie**, you can replicate a lot of movies with the same content.

Since the 70s, scientists have built a gene bank for E. coli, yeast, fruit fly fly, chicken, rabbit, soybean, rice and other organisms. It's very easy to take any of these organisms and recombine them.

I took a look at the introduction in the encyclopedia and briefly explained my understanding.

Newborn genes are of course inherited from their parents, but as you grow up, the genes can mutate.

Gene preservation is to record your chromosomal condition at that time when you were just born, and if you have some diseases in the future, compare your chromosome situation after that, and you can judge whether it is inherited or acquired.

This is absolutely meaningful for determining which diseases are congenital, which are acquired mutations, and whether there are triggers for mutations. However, it is not very clear whether you can be cured of your disease through genes if it is found that it is an acquired mutation that causes you to get the disease. Personally, I find it difficult.