Is a genetic mutation a good thing or a bad thing?

There is no superiority or inferiority in the genetic mutation itself, the key is to look at the effects it causes.

1. The benefits it brings

On a good level, genetic mutations are species evolution.

a kind of "driving force". Some on the natural environment.

Mutations with poor adaptability will eventually be "eliminated" according to the theory of natural selection, while these mutations that are beneficial to the population will accumulate and be passed on, so that they can better integrate into the harsh environment, stronger into social development, and into daily life.

2. The disadvantages it brings

On the bad side, genetic mutations can cause somatic cells.

Abnormal operation causes various illnesses and even death in the body. For example, cancer, diabetes.

patients, psychiatric diseases, etc., also include malformed fetuses during pregnancy, stillbirth, and miscarriage.

and other conditions. Most genetic mutations are harmful to individuals.

Not all mutations have the same practical significance, some mutations have important practical significance, called "push mutations", and some mutations have less relative practical significance, called "rush passerby mutations".

Japanese Present Genetically Mutant Two-Headed Turtle:

According to Japanese media on July 23, a man in Saga City, Japan, found a grass turtle with two heads in a residential area.

When the grass turtle was first discovered, it was very weak, but it gradually regained its health after careful feeding.

Experts say that the two-headed turtle is caused by a natural genetic mutation and is very rare.

It is known that this small turtle shares a body due to two brains. It is said that two-headed animals have difficulty coordinating themselves, have lower intelligence, and are difficult to make correct judgments about dangerous situations, and their survival probability is lower than that of normal animals, and their lifespan is shorter.

Of course, it's better not to mutate. Most cancers are due to genetic mutations, which are essentially a genetic disease, but it is not necessary to say that all genetic mutations are due to parental inheritance, such as viral infections, chemicals, radiation and other environmental factors may cause gene mutations, so that people develop cancer.

Strictly speaking, genetic mutation is a technical term, and genetic variation is commonly referred to as gene-induced variation.

If I had to say the difference, genetic mutations were discussed from a molecular point of view. The main body of gene structure changes caused by the substitution, addition, and deletion of base pairs in a DNA molecule is genes. Genetic variation refers to the variation of human traits caused by genetic mutations, and the main body is human traits.

Among them, those whose genetic material has changed are called heritable variations, while those whose genetic material has not changed (such as environmental impacts) are called non-heritable variations.

There are three types of genetic variation: genetic mutations, genetic recombination, and chromosomal variations. Genetic variation is not a variation that can be passed on to future generations.

For example, a mutation in a certain body leads to infertility and inability to have offspring. In biology, as long as there is a change in the genetic material, it is also called heritable variation.

Traditionally, gene mutations have been predominantly point mutations, sometimes including insertions or deletions of small fragments of genes. Mutational results include ineffective or fatal or altered protein function. Genetic variation usually refers to species variation resulting from the transformation of genes or whole genomes.

For example, the H and N genes of influenza viruses are mutated due to natural recombination to produce new virus species, and the genetic variations produced by the hybridization of various organisms produce different mutated offspring individuals. General textbooks do not have a clear definition of genetic mutation and variation, but the scope and mechanism of genetic alteration are different.

Genes, also known as genetic factors, are all the nucleotide sequences required to produce polypeptide chains or RNA function. The simple understanding is: DNA is a macromolecule of genetic material, and genes are specific information on macromolecules.

The number and sequence of the four nitrogenous bases in each gene are strictly fixed. If there are base deletions, fragment breaks, position substitutions, sequence changes, etc., different physiological changes are reflected at the macroscopic level.

Subjectively, genetic variation is often considered bad, mainly because "mutations" bring uncontrollable, large-scale genetic changes. But in reality, genetic variation is a constant phenomenon in life on Earth, and it does not occur in sudden abnormal environments. The environment is only selective for genetically mutated species.

It is precisely because of the prevalence of genetic variation that species evolution has led to the continuation of life on Earth to this day.

Genetic variation describes the natural genetic differences between individuals of the same species. This change has made the population flexible and survivable in the face of a changing environment. Without genetic variation, some of the basic mechanisms of evolutionary change cannot function.

A mutation is a change in our DNA sequence, either due to an error in replicating DNA or due to environmental factors such as ultraviolet light.

Mutations include minor changes, such as replacing a single DNA building block or nucleotide base with another nucleotide base. At the same time, large mutations can affect many genes on chromosomes. In addition to substitution, insertion, deletion, or replication of DNA sequences can also lead to mutations.

The root cause of all genetic variation lies in the process of mutation, which occurs in different parts of the genome and in the male and female germline lines at different rates.

Genetic mutations are sudden, heritable mutations that occur in genomic DNA molecules.

Genetic variation refers to sudden, heritable mutations that occur in genomic DNA molecules. At the molecular level, gene variation refers to a structural change in the composition or order of base pairs.

A genetic mutation is a change in the base of a gene at a certain point on a chromosome, and the result of the mutation is the creation of a new gene (allele).

A genetic mutation is a change in the structure of a gene caused by the addition, deletion, or alteration of base pairs in a DNA molecule. Genetic variation is a genetic variation that refers to a sudden, heritable variation in a genomic DNA molecule.

To put it simply, a genetic mutation is a sudden mutation that takes effect only on a single individual, while a genetic mutation refers to a relatively stable variant that can be inherited.

A genetic mutation is a change in a chromosome; A genetic variation is a change in the combination and order of base pairs.