If you wonder why you cannot find yourself a partner in life or why you are bad in maintaining a relationship, blame it on your DNA.
Scientists have identified the 'singleton gene' and they claim those who have this gene are 20 per cent more likely to stay single, according to a DailyMail report.
Scientists from Peking University in Beijing tested hair samples of about 600 students to study a gene called 5-HTA1, which has two versions.
Those with 'G' version were more likely to remain single than those with the 'C' version, they explain.
About 60 per cent were not in a relationship, compared to 50 per cent of those with the 'C' version.
In fact, it's the role this gene plays in the brain that is crucial. Those with 'G' version make less serotonin - a brain chemical involved in mood and happiness. They find it difficult to get close to others. Also, they are more likely to become depressed.
However, other scientists say the role of genes in relationships is small. They cite the example of identical twins, who get attracted to the same type of person initially but end up settling down with different partners.