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What are more rare fraternal or identical twins?
i say that identical twins are the least rare because like me a fraternal twin i only know 1 pair of fraternal twin.
What percentage of twins are fraternal?
There is no precise percentage of fraternal or identical twins but it is estimated that 2/3 of all twins are fraternal where as 1/3 of twins are identical.
What is the probability of having twins if your husband is a twin?
Identical twins happen by chance only; 4 per 1000 births or 0.004 probability. Fraternal twin probability is increased only if it is on the mother's side; so this does you affect your circumstance (from what you have stated). The chance of fraternal twins is 1 in 60 or 0.017. So, your probability of identical twins is 0.004 and fraternal twins is 0.017 (BTW, I have triplets).
What kinds of twins are there?
Identical and Fraternal There are identical and fraternal. Fraternal twins happen when 2 different embryos start growing at the same time, so you get a brother and a sister or 2 sisters or 2 brothers that are the same age. Identical twins happen when 1 embryo splits into 2 embryos when it is only a few cells big, so both babies have the same genes.
How common would it be to have twins?
you have about a 1 in 60 chance of having natural fraternal twins.
How frequently do mothers have twins in the US?
I'm not sure but: 1/40 identical 1/20 fraternal
Are identical twins more common than fraternal twins?
it was 1/250 just for twins, but identical is more common then futurnal
What are two kinds of twins?
There are identical and fraternal. Fraternal twins happen when 2 different embryos start growing at the same time, so you get a brother and a sister or 2 sisters or 2 brothers that are the same age. Identical twins happen when 1 embryo splits into 2 embryos when it is only a few cells big, so both babies have the same genes.
If the probability of getting identical is 0.004 while the probability of fraternal twins is 0.023 then what is the probability that a person chosen at random will not be a twin?
1- P(identical) - P(fraternal) =1-0.004-0.023 =0.973 The probability of being a identical or fraternal twin plus the probability of not being a twin has to add to 1. so 1- probability of being twins=probability of not being a twin ;-)
Do twins have one amniotic sack or two for humans?
Fraternal twins always have two. About 1% of identical twins share an amniotic sack. 99% will each have their own sack.
Do twins have one amniotic sack or two?
If you mean identical twins, they can be in one sac (1) or each in their own sac (2). As for fraternal twins, they each have their own sacs (2).
Are quadruplets always identical or always fraternal or can they be either?
Quads can be identical, fraternal, or a pair of identical twins. Identical quads are rare- that would require 1 egg divide into 2, and then divide again into two. Most quads are fraternal.
