i know the odds of having a twin is 1 in 300.but i want to know what the odds are of having identical twins who are born with different hair colors. like one having light blonde hair and the other having dark red hair.
211060
I would say the odds are low, but not zero. I have twin brothers, and they have the same hair color, but they aren't identical in everything. Throughout the years (they will be 21) they have changed. They still look like each other, but one is taller then the other, and/or one is skinnier then the other. They are still identical, but factors in their life have molded them to what they are today.\n\nHair color is tricky. And usually the hair color you are born with isn't what you end up with. Hormones are to thank, and that would be the only reason why the hair would be different...a slight characteristic flaw in the hormones.\n\nThey SAY twins are twins, but coming from personal experience...no one can be EXACTLY the same. We are all unique, even if someone looks like us.
259306
I like this question.  The strangest coincidence that ever happened to me is when I walked into a classroom on the first day of school a teacher said to me, "I think you came to the wrong room you were just in this class."  I hesitated and then said that I had never been in her class at all.  She was very insistant that I had been and checked her roll book only to find out that the person she was talking about had a totally different name.  The next day she had the girl she was talking about stay and meet me.  It was uncanny, we looked exactly alike...the coincidence, we also had the same birthday and were born at the same hospital.  No, this isn't a case of "Parent Trap", we did not turn out to be twins seperated at birth, we aren't even related.  However, we did have an awful lot in common and she did only live a block away which explained a lot to me...people were always saying, "I saw you at such and such a place, or what was wrong with you that you walked by me like you didn't even know who I was the other day?"  Now I understand that it wasn't me they were seeing. She and I have become friends and have been friends for several years now.  In my case, I guess the saying that there is a twin for everyone is true.
388302
I don't know the statistics, but I have a brother and sister who were born on the same day 2 years apart.\n\nCome to think of it, I have a brother and a nephew born on the same day many many years apart.
234180
well it depends... it's a simple genetics case really... but it depends if your husband is Homozygous or Heterozygous dominant. If he is homozygous, this means he has two dominant alleles for brown hair... and your child will never have read hair, becuase his genes will be dominant over your red hair and recessive gene. However, if he is heterozygous with one dominant brown hair gene and the other a recessive gene, then there is a 50% chance of his recessive gene combining with your recessive gene. But it is only possibel to guess at what his genes are unless you go back to previous family generations, this is called genetic counselling, where people study your history to determine what genes you have.
222588
Each wavy-haired Caucasian would have a Gene for curly hair, (C) and a Gene for strait hair,(S). So\nCS, CS\nCC, CS ,SC,SS\n\nThe CS and SC would have wavy hair, so each offspring would have a 50% chance of having wavy hair. \n\nMost likely half the offspring would have wavy hair, but all combinations are possible with every pregnancy.
213536
I'm a fraternal twin. People said my brother's the nice twin, and I'm the evil twin. Lol.
595143
Asthma has a genetic factor, among some others.\nyou and your twin (assuming that your are identical twins) share the same genetic information. In case that you are not identical you still share 50% of your genetic information with each of your brothers of sisters and maybe some of this shared information is the susceptibility to develop asthma\nYou share some but not all the genetic information with your other brother and sister and maybe some of the genes that made you susceptible for developing asthma were not in them.\nif maybe you had in the future more brothers or sisters some of them could share the susceptibility to asthma too. \nand maybe your brthers and sisters have other susceptibilities that you don't have\n\nstick to your treatment and you'll do fine
332704
Think about the chance a family of 1 child to be all girls, then two children, three children, etc.  Then the answer will be obvious:\n\nChance of one girl in one birth is 1/2.\nChance of two girls in two births is 1/4.\nChance of three girls in three births is 1/8.\nChance of four girls in four births is 1/16.\nChance of five girls in five births is 1/32.\nChance of six girls in six births is 1/64.\n\nThere are 64 permutations of 6 births, but only one is all girls.  Note: This is the same probability of tossing heads 6 times in a row.  Here are the breakdown of combinations:\n\nAll 6 girls = 1 combination\n1 boy, 5 girls = 6 combinations (BGGGGG, GBGGGG, GGBGGG, etc.)\n2 boys, 4 girls = 15 combinations\n3 boys, 3 girls = 20 combinations\n4 boys, 2 girls = 15 combinations\n5 boys, 1 girl = 6 combinations\n6 boys = 1 combination\n\nSince there is only one combination out of 64 possible ways, the answer is 1/64 or 1.5625%
226026
With identical twins - the other twin will always be female, as they are a clone of the original female.\nWith the fraternal twin - the other will be either female or male 50/50.
242710
In Mexico we called them "cuates" (plural) and they are not twins, they are not identical. This happens when two eggs are fertilized by two different sperms. As the other person said whether they are from different dads (natural way), or she got pregnant, in vitro and two sperms fertilized two of her eggs.\nOr as the other person said they could have been born one monday of any month and the other baby other monday of other month. But it's the same day.\nOr what happenned?
366113
No you could  not have 4 identical twins.  Twins are two babies born at once.  at conception the egg splits and makes twins they share the exact same DNA there for can not go to prison based on DNA evidence.  On the other hand it is very very rare that you would get quadruplets that are identical but it is possible.  If they are all the same sex it may be the case.  I have a relative who has 2 sets of twins 10 months apart and they all look identical however they are not as it is impossible.  Hope this helps.  I come from a family with 17 sets of twins.  They say that it skips a generation however that is not always the case.
602782
The cells from two separate eggs (twins) can combine into one whilst in the mother's womb - thus one child is born but has two dna's instead of one
26141
I believe identical twins and fraternal twins are both hereditary. It is quite common what your cousin has experienced.
654336
Fraternal twins can still look alike. Fraternal just mean that they each were conceived in separate eggs. Identical twins are conceived from one egg that splits into two.
600654
nope .....we had twins i must have a shoe box full of pictures and we have two heathy boys.  Having twins is a high risk pregnancy and we had to go like every 2 weeks to get ultrasound.
610236
When two egg cells are fertilized by two sperm cells in the same period of time, fraternal twins are formed. So, if a woman’s ovaries release more than one egg during ovulation and the woman has contact with more than one man during her fertile period, it is possible that she will become pregnant with twins who have different fathers. This phenomenon is extremely rare, but possible.\n\nIn even rarer cases, fraternal twins from different fathers may result from mistakes made during assisted fertility procedures. For instance, if a woman is artificially inseminated with a mixture of two men’s sperm cells because the equipment was not properly cleaned after its last use, she may become pregnant with fraternal twins who have different biological fathers. Again, while possible, this occurrence is exceedingly rare.\n\nNote: Identical twins cannot have different fathers. Identical twins are formed when the zygote created from one egg cell and one sperm cell splits during its development. When a single zygote produces twins, one man is the father of both children.
87524
They're not always opposite gender. "Fraternal twins" can mean the opposite of "identical twins". Sometimes called dizygotic, it means that although they are twins, they developed from two different eggs, not one. They therefore share only 50% of their genes (the same as any two non-twin sibs), rather than 100% that identical twins share.