There is a perception that twins are very similar to each other sisters or brothers, but twins can differ both in appearance and in sex. But in fact it is not.
In medicine there is no concept of "twins". All children born in one pregnancy, the doctors called twins. They are identical and fraternal.
Identical twins result from division of one fertilized by spermatozoon. It can be divided into two, three and even four parts. Pregnancy in this case may develop differently. The placenta may be common to all fruits, as individual to each of them. The same situation from the fetal bladder.
The second option is multiple pregnancy – fraternal or monozygotic, twins. It is quite rare. The fruits in this case are developed from two or more fertilized eggs in the same number of sperm. Born as a result of such a pregnancy toddlers and is popularly called the twins. By the way, they can be conceived from different fathers.
Twins are born more often than the twins. The probability of occurrence of the first one birth per thousand, and the second one in 3-4 thousand.
If you stick to the traditional terminology, the twins always the same sex and twins can be different. First always have a strong resemblance, in infancy, they can be easily confused, even being their parent. They have the same set of genes, blood group and, most often, identical fingerprints. Twins resemble each other no more than ordinary sisters or brothers.
In the course of research it was proven that the chance of having twins is directly proportional to the increasing age of the mother. Most often, such a pregnancy is detected in women in the 35-40 years. As for identical twins, they can appear in women at any age.
Twins to bring up much easier, despite the fact that they are still two, maybe more, and the first time to follow them hard enough. They eat in equal amounts, Wake up and fall asleep around the same time. Over time they have formed the same character, their interests often coincide. The twins, in turn, very different children who require an individual approach.
Make some fruit at the same time is very difficult. Such a pregnancy can cause complications at the mother and children. More recently, doctors began to define it as pathological. And the twins, and the twins bring a lot of trouble from the very first days of development. This is a strong blow to the body of the mother, but if he's healthy and full of energy, no problems should arise.
In medicine there is no concept of "twins". All children born in one pregnancy, the doctors called twins. They are identical and fraternal.
Identical twins result from division of one fertilized by spermatozoon. It can be divided into two, three and even four parts. Pregnancy in this case may develop differently. The placenta may be common to all fruits, as individual to each of them. The same situation from the fetal bladder.
The second option is multiple pregnancy – fraternal or monozygotic, twins. It is quite rare. The fruits in this case are developed from two or more fertilized eggs in the same number of sperm. Born as a result of such a pregnancy toddlers and is popularly called the twins. By the way, they can be conceived from different fathers.
Twins are born more often than the twins. The probability of occurrence of the first one birth per thousand, and the second one in 3-4 thousand.
If you stick to the traditional terminology, the twins always the same sex and twins can be different. First always have a strong resemblance, in infancy, they can be easily confused, even being their parent. They have the same set of genes, blood group and, most often, identical fingerprints. Twins resemble each other no more than ordinary sisters or brothers.
In the course of research it was proven that the chance of having twins is directly proportional to the increasing age of the mother. Most often, such a pregnancy is detected in women in the 35-40 years. As for identical twins, they can appear in women at any age.
Twins to bring up much easier, despite the fact that they are still two, maybe more, and the first time to follow them hard enough. They eat in equal amounts, Wake up and fall asleep around the same time. Over time they have formed the same character, their interests often coincide. The twins, in turn, very different children who require an individual approach.
Make some fruit at the same time is very difficult. Such a pregnancy can cause complications at the mother and children. More recently, doctors began to define it as pathological. And the twins, and the twins bring a lot of trouble from the very first days of development. This is a strong blow to the body of the mother, but if he's healthy and full of energy, no problems should arise.
