By definition, all living organisms have the ability to change their DNA, and so a single gene can be used to change the genome.
But scientists have struggled to find a gene for more complex traits like cancer resistance or autism.
Here are a few of the genes scientists think are particularly interesting, according to a new paper from the National Institutes of Health.
The most interesting genes have been discovered in organisms that have been domesticated, such as cattle and chickens, and their effects on their own genes are not yet known.
But there are other examples of genes that can change the genes of their hosts.
One example is the gene that causes a condition called mitochondrial disease, which affects only humans, but which is found in many other species, including fish.
This disease affects only one in 100,000 people worldwide, but is usually caused by a mutation in the mitochondria, the part of the cell that makes energy.
Researchers have been able to create genetically modified strains of these fish that have a reduced risk of developing the disease, but there is still some work to be done to develop a cure.
The other gene that has attracted researchers’ attention is the one that controls how many genes are inherited from parents to their offspring.
Some researchers have hypothesized that this gene is involved in reproduction, and if so, that could help explain why we don’t inherit more than two copies of each gene.
The most common form of this gene mutation is found only in people of European ancestry.
Other genes that are thought to be important for evolution, like the gene for a hormone called gonadotropin-releasing hormone (GnRH), which has been linked to fertility, are also not yet found in humans.
The problem with this gene, according a study published in September in Nature, is that it’s not widely studied, and is found on every single chromosome in the human genome.
Researchers have shown that some human chromosomes have genes that affect fertility, but those studies were conducted on small groups of people, and the gene might not be able to be detected on an individual person.
“It’s hard to say what the effect is going to be for a given individual, but we do know that there are differences between men and women in this gene and there are some things that we don and don’t know,” said study author Dr. Robert A. Klimoski, an evolutionary biologist at the University of California, San Diego.
But the study did find that one chromosome, called the X chromosome, has a gene called GPR57 that is linked to a number of genes, including GPR21, which regulates how many chromosomes the cells in the body have.
This is one of the reasons why, in some cases, it may be beneficial for the person to have a baby with a particular parent.
Other studies have found genes that may play a role in human development, such for genes involved in cancer, but these have been difficult to find in people.
This could be because people have a genetic predisposition to develop cancer, and researchers have not yet figured out a way to target these genes to treat cancer.