riddle 2 babies were bornat the same hosp at the same time and they have the same parents,they are not twins?
100809
They are part of a set of triplets :-)
72015
answered this a couple minutes ago but i will answer it again\n\n\nthompson twins
941512
Full Sibling None. 1/2 Sibling Some\n\nk1
1131654
OK, *some* twins are genetic clones, in that they have identical DNA because they come from a single egg and a single sperm.  Most twins are not genetic clones and are in fact fraternal, coming from two different eggs and two different sperm.\n\nAs the parent of identical twins, I can tell you that they have a lot of differences.  They don't "share a soul" so that they can communicate in some romanticised twinspeak thing, although they do relate to each other extremely well and often feel similar emotions, but then they are usually doing the same activities and having the same experiences, so there is nothing mystical about that.  \n\nTHey are each an individual and they have their own individual likes and dislikes.  They like a lot of similar things, like their favouirte colour and games, but then that makes them similar to just about every other 3 year old girl on the planet too.\n\nBut lets get right to the point:  God caused them to come into being.  God gave them each their own soul.  They have the right to be recognised and valued as individuals.  Twins are very special and identical twins are rarer and so thought of as even more special - it is always a novelty for people to see people who look exactly alike.  But as a parent of two other children who are not twins, I can also say that every single person born is just as special.  Lets not bestow multiple birth children with mystical qualities.  Lets just let them be kids.  They get enough unsolicited attention and advice as it is.
619446
I assume you're talking identical twins.\n\nThey'll look as alike as the children of any normal couple. \n\nSince the mothers and fathers are genetically identical, it makes no difference (genetically speaking!) whether\n- one of the twin males marries one of the twin females\n- twin males both marry twin females\n- one of the male twins produces children with both female twins\n- one of the female twins produces children with both male twins.\n\nIn all of the above cases, all of the children will (genetically) have the same mother and the same father!\n\n\nGenetic relatedness can be expressed as a number, from\n1 = genetically identical (i.e. twins), to\n0 = not related at all.\n\nFor any particular gene (which we can think of as controlling one particular physical attribute), this is the probability that the two individuals have the same "version" or allele of that gene.\n\nThe higher the number, the more alike two people are LIKELY to be, although the way genes interact is complex and barely understood. So even though brothers and sisters have an average relatedness of 0.5, you may get some that look so similar they could almost be twins, while some look completely different to one another.\n\nFor two sets of identical twins marrying, average relatedness of their children is 0.5 (same as brother and sister)\n\nFor one set of identical twins marrying one set of non-identical twins, relatedness of their children is slightly less at 0.375\n\nFor one set of non-identical twins marrying another set of non-identical twins, relatedness of their children is 0.25 (same level of relatedness as half-brothers or half-sisters, and double the normal relatedness of first cousins which is 0.125)\n\nInteresting thought that if you and your brother or sister marry two children from another family (as happens from time to time), your respective children will effectively be half-brothers and half-sisters to one another!
683450
they are spelled with the same letters
381226
HEY ARESEANTLERS! Let me clue you in on this. You can have the exact same DNA but still have different fingerprints. Fingerprints can't change DNA assumptions. By the way, identical twins DO share the same DNA because they come from the same sperm and fetus. Sperm carries DNA and so does the fetus. So how will the twins be different from each other?
58824
Probably, they were born just like anyone else, but no one was keeping records yet, and, well, memory can go back only so far.  I seriously doubt that they were "the FIRST" humans on the planet, thus I doubt that they are the parents of EVERYONE.  At any rate, I'll bet they both had navels due to the same reasons everyone else does.
127917
A: 2 PPL HAVE SAME GENDER\nB: 2 PPL HAVE SAME BIRTHDAY\n\n\nP(A) = 90/190\nP(B) = 365/365 X 1/365 = 1/365\n\nP(AnB) = P(A) X P(B) = 90/190 X 1/365 = 0.001
423228
Only identical twins have similar fingerprints.\n\nOtherwise all of us have different fingerprints.
173126
identical twins, formed when one fertilized egg splits, are the only people in the world with identical DNA. fraternal twins, on the other hand, are formed when two different eggs are fertilized. genetically speaking, fraternal twins are no closer than normal siblings, sharing only about 50% of their genes. although identical twins have the same genotype, or DNA, they have different phenotypes, meaning that the same DNA is expressed in different ways. traits determined by phenotype, such as fingerprints and physical appearance, are the result of "the interaction of the individuals genes and the developmental environment in the uterus." thus, a DNA test can't determine the difference between identical twins, while a simple fingerprint can.
633332
Yes identical twins do have the same DNA. They came from the same egg so they have identical DNA.\n\nIdentical twins\nIdentical twins occur when a single egg is fertilized to form one zygote (monozygotic) which then divides into two separate embryos. The two embryos develop into fetuses sharing the same womb. Depending on the stage at which the zygote divides, identical twins may share the same amnion (in which case they are known as monoamniotic) or not (diamniotic). Diamniotic identical twins may share the same placenta (known as monochorionic) or not (dichorionic). All monoamniotic twins are monochorionic. Also note that any monochorionic or monoamniotic twins are identical twins. This condition does not occur in fraternal twins.\n\nThe later in pregnancy that twinning occurs, the more structures will be shared. Zygotes that twin at the earliest stages will be diamniotic and dichorionic ("di-di"). Twinning between 4 to 8 days after fertilization typically results in monochorionic-diamniotic ("mono-di") twins. Twinning between 8 to 12 days after fertilization will usually result in monochorionic-monoamniotic ("mono-mono") twins. Twinning after 12 days post-fertilization will typically result in conjoined twins.\n\nIn placental species, twins sharing the same amnion (or the same amnion and placenta/chorion) can cause complications in pregnancy. For example, the umbilical cords of monoamniotic twins can become entangled, reducing or interrupting the blood supply to the developing fetus. About 50% of mono-mono twins die from umbilical cord entanglement. Monochorionic twins, sharing one placenta, usually also share the placental blood supply. These twins may develop such that blood passes disproportionately from one twin to the other through connecting blood vessels within their shared placenta, leading to twin-to-twin transfusion syndrome.\n\nMonozygotic twins are genetically identical (unless there has been a mutation in development) and they are the same gender. (On extremely rare occasions, an original XXY zygote may form monozygotic boy/girl twins by dropping the Y chromosome for one twin and the extra X chromosome for the other.) Monozygotic twins generally look alike. Fine physical details such as fingerprints will differ. As they mature, identical twins often become less alike because of lifestyle choices or external influences.\n\nThe likelihood of a single fertilisation resulting in identical twins is not a hereditary trait.[citation needed] The exact cause for the splitting of a zygote or embryo is unknown.\n\nHuman identical twins can behave as differently as any other siblings (a matter of much interest to psychologists). They develop their own individual personalities, enabling them to be identified as individual persons. Many identical twins spend most of their time together (especially as children), so people often assume that they will behave alike just as they look alike; however, this is not the case. Twins are unique individuals that establish their own individual likes and dislikes. There are usually obvious signs of differences when the identical twins are observed separately or together.\n\nIdentical twins have identical DNA but differing environmental influences throughout their lives affect which genes are switched on or off. This is called epigenetic modification. A study of 80 pairs of human twins ranging in age from 3 to 74 showed that the youngest twins have relatively few epigenetic differences. The number of differences between identical twins increases with age. 50-year-old twins had over three times the epigenetic difference of 3-year-old twins. Twins who had spent their lives apart (such as those adopted by two different sets of parents at birth) had the greatest difference. (Fraga, et al., 2005).\n\nSome monozygotic twins are known as "mirror twins" or mirror image twins. These are identical twins with opposite features, that is, one may be right-handed a
488041
No, fraternal twins have DNA that is as similar as brother and sister would be.  That's essential what they are, brother and sister (or sisters, or brothers), but simply born at the same time, since it is two separate eggs being fertilized by two separate sperm.
568935
picture of a newborn side by side with a picture of a 20-year old.
213709
Identical twins are created when one previously fertilized egg splits into two.\nFraternal twins are created when more than one egg is fertilized.\nFraternal twins can definitely have different hair colors - just like any other set of siblings.
866573
since they are both related... they have the same parent.... and all the children have the same top\n\ntop.document is the same, so ya stick your variables there!\n\ntop.x instead of x as in \ntop.x = 7;
561947
identical come from one egg that split when fertilized and fraternal come from 2 separate eggs. Identical are together in one 1 sack and share a placenta fraternal are in separate and each have a placenta-same with triplets and quints.\nThat's why identical triplet and Quints are SO rare.