Found twins in humans

Many people have long wondered why some people are capable of twins, while many others do not. Recently, the researchers revealed that a number of genes have been found to increase the ability of twins in humans.

Twins are also the subject of attracting the scientific community for hundreds of years. This phenomenon is quite common, there are 1 birth for every 100 births, according to Daily Mail.

Scientists claim to have identified two gene variants that increase the chance of twins to 29%. This groundbreaking discovery is the result of research by Dr. Hamdi Mbarek and Professor Dorret Boomsma at Vrije Universiteit University Amsterdam, Netherlands.

Science has discovered two types of gene variants that increase twins.(PHOTO: SHUTTERSTOCK).

The first gene variant is the FSHB gene , which is able to release the follicle-stimulating hormone. This hormone is secreted from the pituitary, a small area of ​​the brain that dominates most hormones in the body.

Gene FSHB dominates the reproductive function in women, from the time of the first menstrual period to menopause, the age of the first child as well as the ability to produce many children.

In addition, FSHB also affects polycystic ovary syndrome (PCOS) , one of the main causes of female infertility.

The second gene variant, SMAD3 , controls how the ovary reacts to follicle stimulating hormone. The interaction of these two gene variants provides the necessary elements for the birth of twins, the study said.

According to Daily Mail, twins have 2 types. The identical twin types of medicine are called Monozygotic twins . An fertilized egg divides and develops into two fetuses with the same genetic information.

The second type is identical twins called dizygotic , which occurs when two eggs are fertilized by two different sperms.