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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 frequently do mothers have twins in the US?
I'm not sure but: 1/40 identical 1/20 fraternal
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 ;-)
Are identical twins more common than fraternal twins?
No, fraternal twins are more common than identical twins. Identical twins occur when a fertilized egg splits into two embryos, resulting in two individuals with the same genetic makeup. Fraternal twins occur when two eggs are fertilized by two different sperm, resulting in siblings who share approximately 50% of their genetic material, like regular siblings.
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.
If my grandma on my mom's side had twins what are the chances that i will have twins?
Here are the variables that increase chances of having twins or multiple babies: 1) You the mom are over 45 2)You live in Massachusetts 3)You take fertility drugs or undergo fertility treatments 4)You, your mother, or her mother is a fraternal twin. Skips generations 5)You already had fraternal twins 6)You are Nigerian 7)You are tall or overweight. Here are the variables that decrease chances of having twins or multiple babies: 1)You are Hispanic or Asian 2)You are under 25 3)You live in Hawaii If you are looking for statistics for identical multiple births (instead of fraternal), then the chances are very much less likely than fraternal twins. ~The chances of having triplets or more is 1 in 8100 and odds having quadruplets are 1 in 729,000
