What is the main difference

Medical terminology uses conceptsidentical and dissimilar twins. Twins are two or more children who grew up together in the womb and almost simultaneously came into being. Doubles are called ambiguous twins, and identical twins are just twins.the difference between twins from twinsThe difference between twins can be seen only by the closest people. Photo: Getty Here's what distinguishes them:

  • Twins can be of the same sex or different sexes. But twins are always just same-sex.
  • Twins are always identical. They are very difficult to distinguish externally, especially to strangers. They have the same blood group, the same disease and complete portrait resemblance. And twins look like brothers and sisters, as if they were born at one mom, but at different times.
  • Twins are born approximately 1 time for 4 thousand births. Twins are more common, only 1 time per 1000 births.
  • For the conception of twins, only one egg is needed, and twins - 2 different eggs.

At conception in a test tube, the chance to give birth to twins increases. And also the probability of twin birth is increased in women, long time before conception of taking hormonal contraceptives.

Difference in fertilization with twins and twins

Twins appear from one egg, forThe fertilization of which requires only one sperm. Then, for reasons unknown to science, it is divided into two parts. As a result, genetic copies are formed. Each of the cells will develop into an independent embryo. Twins are more likely to be born in women aged 30 to 40 years. Twins arise from two eggs fertilized by spermatozoa. They can even have different fathers. This is due to the fact that in rare cases, when ovulating from a woman's ovary, two eggs are released. Although usually only one comes out. For this reason, the family is born into differently twins or twins. So, twins are natural clones, in which the identical appearance, character and even hereditary diseases. They can not be of different sexes. And twins are brothers or sisters or brother and sister who have similarities and differences, as if they were born not simultaneously, but as a result of different pregnancies from one mother.

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