There is Identical twins, Nonidentical twins and Conjoined twins.
boy, girl and simese twins Siamese twins are now properly called conjoined twins. You can have identical twins[ same sex] , fraternal twins [ one male , one female ]. triplets, same way, quadruplets, quintuplists , sextuplets and so on , with fertility drugs.
Fraternal twins are the product of two separate combinations of ovum and sperm at the same time, resulting in genetically different children with a shared womb.Identical twins are the result of one ovum-sperm combination, which then splits into two separate children who are genetically identical.If the two children born from one pregnancy are genetically near 100% identical (with consideration for mutations and genetic alterations after the split or post-natal), they are identical.If the two children have closer to normal sibling genetic similarity (around 50%) but just share a birth time, they are fraternal.Also, identical twins share the same gender. If twins are of different gender, they must be fraternal (though fraternal twins can be same gender as well).
Conjoined twins are categorized by a set of adjectives ending with the suffix "-pagus" from the Greek word for "fixed". Early teratologists such as Ambroise Pare and Geoffrey St. Hillaire were among the first to identify and name the various types of conjoined twins. Many actual sets of twins do not fit perfectly into any of these classifications, and the terms are often combined to describe these twins.
i don't know how to explain it but i can show you an example- Peter and Alexzander are twins. The twins have a amazing water-bed. to combine it it will be like this- The twins, Alexzander and Peter have and amazing water-bed.
Scientists use studies of identical twins because they share the same genetic makeup. By comparing identical twins with non-identical twins, researchers can separate the effects of genetics from environmental factors in order to understand how traits and characteristics are influenced by both nature and nurture. This can provide valuable insights into the role of genes in shaping human characteristics and behaviors.
Scientists use studies of twins to explore the roles of nature (genetics) and nurture (environment) in shaping human characteristics. By comparing the similarities and differences in characteristics between identical twins (who share 100% of their genetic material) and fraternal twins (who share about 50% of their genetic material), researchers can gain insights into the relative contributions of genes and environment to traits like intelligence, personality, and disease susceptibility. Twin studies help to tease apart the complex interplay between genetics and environment in shaping human behavior and health.
do think scient try to creat art ficial twins
they will like to learn why do twins look alike but don't like he same things ?
it is totally wrong for human to bear twins, i mean scientifically.
If they are human twins then about 9 months
no. every human has different fingerprints, twins or not
Nigeria
shamaw
No they are not twins. They came from different human families. Hope that helps...
Because the mother identical twins each have a different husband . . . half of his characteristics show up in their babies.
Because they felt like it