2016년 4월 22일 금요일

Get the Facts on twins

Get the Facts on twinsFOCUS Science
The twins daeseda days. KBS variety program 'Superman is Back' to learn triplets, Republic of Korea, Mr. Song Il Hail to have appeared in the Republic of Korea and shakes like the name. The twins join forces to preface, Mr. Comedian Lee Hwi-jae seojun of making the people as "stupid twins. The atmosphere twins as a topic every day and feel around us, even Having a multiple birth (多 胎兒).

● twin birth rate, increased three times the new '20

The twins were born more recently actually. The total number of births over the past 20 years, a trend that gradually decreases, while the twin birth rate has steadily increased. According to the National Statistics Office announced, in 2013 the birth statistics, multiple birth accounted for 3% of all births in thousands 1 10 000 4 persons. 7000 when compared to 1991 was accounted for 1% of all births are people count increased nearly three-fold. Experts analyzed that because artificial insemination neuleonatgi the reasons for the recent increase in multiple birth.

Typically, artificial insemination is a method of putting the embryos created artificially in the womb of the mother to induce conception. Porting the 2-3 fertilized eggs in her body to increase the success rate, when you transplant the embryo are all ideas born multiple birth he says. Another sisulbeop of 'superovulation' is one in a way once to induce in so many eggs are ovulated success in both the number of oocytes modify, the gotta-implantation probability born twin 50 times higher than the natural pregnancy to increase the corrected odds . Therefore, all around us, the twins recently, many would say exactly the "fraternal twins".

● brothers were born the same day as one

Fraternal twins are born the same day as genetically identical with the brothers. The rate of identical twins share the same genes, but is 100%, dizygotic twins and siblings are not common only 50%. So this may vary gender and nature and also looks slightly different. For the twins, but said, ROC, hurray, as you can learn at a time. The reason is that fraternal twins grew up in two different fertilized eggs as name gotta be two eggs are grown with each modification.

Then dwaedo modified with two single sperm into the oocyte could be twins? The correct answer can not be that! This happens very rarely enter the egg is more than one sperm at the same time 'dajeongja edit. However, this fertilized egg is made of natural heritage as a baby does not grow because more than 46 the number of normal human chromosomes.

She usually makes one egg a month. So, fraternal twins will be born in that particular situation is made ​​more than two eggs a month. If the fertilized egg all three parties, like triplets, born the snout if it can fit more characters. But there can be born in a variety of ways starting triplets. Two eggs are being modified when the one of its divisions, the triplets will become fraternal twins and identical twins.

● fraternal twins are genetic maternal

"The twins are born every other one, there is the myth. Unlike wonder you even there is a gene that is filtered expressing one? Myth identical twins is genetic and has nothing to do. Identical twins is fed twins gotta separated into two after one egg and sperm meet in a fertilized egg. In general there is a separation within a few days after the fertilized egg, the cause is unknown.

However, fraternal twins will receive a genetic influence. Is that there are certain genes that determine the fraternal twins. The amount is far more than the ordinary people of this gene who FSH (follicle stimulating hormone), which has a. Follicle stimulating hormone acts to gotta secreted by the pituitary gland to grow the eggs. These hormones due to export more than one egg a month. When the handsome, if both parties to modify it where sperm met with fraternal twins. The matrilineal genetic gene because it is related to the creation and eggs.

The key to weight the body, including the mother is also a high probability analysis give birth to fraternal twins is greater. It will be much larger body that secrete hormones into the body is relatively vigorous. Much higher probability of follicle stimulating hormone secretion will be a lot, and even high probability that you can talk to secrete more than one egg a month.

● Identical twins are more the same than a clone?

Identical twins are much the same as from the same fertilized egg. Same sex looks fresh from twin womb occurred almost equally so hard to read. This is because the gene sequence which has a twin exactly the same. Sequences are inde characteristics of the body, in the order they gotta listed are components that make up the DNA It plays an important role in determining the.

Therefore, identical twins are sometimes described as "the closest to the presence of human cloning. So who did more of the same cloned animals and the twins? In fact, cloned animals and the twins both have the same genes. However, when comparing the wake freshly cloned animals are born able to see more ttokgatdago. The animals grow in a particular area where there are bacteria When cloning animals, and not to accept any external influences when my culture, a part of the body. So that would be born appearance intact gene have less network.

However, changes increasingly cloned animals also twins also older lifting. People makin nature and disease were established with age by the external environment such as stress and dust, viruses, has a greater influence than genes such an external environment that has an existing this study deals with the contents of these inde 'epigenetics', cloned animals that would apply to this theory.Unlike the Twins started from the same fertilized egg is "Mokpo National University professor heoyunmi cloned animals will have already grown by culturing the cells of the animal changes caused genetically. Therefore, there is a difference appears cloned animals while growing up may be larger than the difference between identical twins, "he says. Then you will see identical twins are genetically ttokgatdago more than a clone.

● Identical twins are also DNA can be different?

In the meantime, we thought the DNA of identical twins is completely ttokgatdago. So was born is thought that the nucleotide sequence of a 100% instant match. But recently born identical twins also have a slim, but genetic differences before birth may subsequently have been published findings.

Scientists of the euro Pins (EUROFINS, hazardous material testing analysis research institutions) were analyzed in identical twins, dad and uncle and one son, DNA collected this year three sperm. As a result, the twins found a father and son from a genetic mutation twin uncles do not have. In other words, dad and uncle twins, but will confirm that the DNA is different. The scientists explained that this means that the mutation is a change only occurred one people only one gene in the embryos immediately after the separation of the twins appeared about. The talk jyeotdaneun the DNA of twins by the external environment, the womb environment that is different yet before you develop into a fetus.

If a woman has twins may vary in appearance depending on which genes are expressed. Female sex chromosomes 'XX'. The same X gene expression dwaedo one on either side of the two, so two or result is the same. There is the expression of the gene expressing the same location sister is left of the two X, X sister when the right expression, even the same physical characteristics can cause a very slight difference.

DNA analysis or changes that appear while growing up in identical twins because scientists are always the subjects that interest you. Gene is looking for a link between the environment and genes, to develop treatments or ways to cope with aging and disease.Foosung genetics is conducted from space. NASA (National Aeronautics and Space Administration) is on the earth One of twins in March 2015, after the rest of them stayed one years on the space station, who plans getting old not more, check if any changes occur in the DNA. Indeed twins fast-moving objects The more Einstein Brothers astronauts going slow two hours if I can prove that the 'special relativity', the gwichu is noteworthy if you can provide clues of epigenetics.

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