Estimating the exact number of pairs of identical twins in the world is challenging due to varying birth rates and reporting practices across countries. However, studies suggest that approximately 3 to 4 pairs of identical twins are born for every 1,000 births globally. Given the world's population and average birth rates, this could translate to millions of pairs of identical twins existing today. The prevalence of identical twins can also vary by region and population genetics.
Identical twins develop from a single zygote that splits into two embryos during early development. Therefore, only one zygote is needed to form identical twins.
there are two types of twins-- fraternal and identical. Fraternal twins are genetically unique, and they usually have physical differences. Identical twins are identically identical, such as a clone, and have exact physcial characteristics, excluding weight and scars etc.
Eye colour is caused by genetics whereas the weight of a person depends on how they life their life (how healthily they eat or how much exercise they do) so it is an environmental variation. Identical twins have the same genes so have the same eye colour.
Identical twins occur in about 3.5 out of every 1,000 births in the United States. It is estimated that around 32 out of every 1,000 births are twins, with identical twins making up about one-third of all twin births.
It depends on the type of twins If It was identical (monozygotic) twins, one egg is fertilized (As you can see, identical twins have similarity in phenotype (the observable characteristic of an organism) because of development of one zygote divided into two embryos) but if it was non-identical twins, two eggs or more (such as triplets or quadruplets) are fertilized. The twins have differences in phenotype
10 million identical and 115 nonidentical.
First one comes out and then the other. Usually through either the normal passage way, or a cesarean cut.
10,000,000 twin sisters
Assuming their are no mutations the twins wold both have 46 chromosomes. Twins, have the normal number of chromosomes, the only difference between an set of identical twins and two average individual is that twins have identical DNA.
fraternal and identical
1
Identical twins develop from a single zygote that splits into two embryos during early development. Therefore, only one zygote is needed to form identical twins.
3 identical twins and 55million non-identical....hope it will help
1000
There will be two pairs. It is possible for all four angles to be identical.
there are two types of twins-- fraternal and identical. Fraternal twins are genetically unique, and they usually have physical differences. Identical twins are identically identical, such as a clone, and have exact physcial characteristics, excluding weight and scars etc.
Identical and fraternal twins typically share many similar characteristics