Despite sharing DNA sequences, monozygotic twins are epigenetically distinct and express different genes, offering a model to ...

Identical (monozygotic) twins come from a single fertilized egg that splits into two. Of 1,000 births, about 31 produce identical twins. Here are the characteristics of identical twin development: ...

Find out everything you've always wanted to know about identical twins – from how they form to what makes them unique.

While most twins are fraternal or identical, science reveals a captivating array of rarer subtypes. With proper prenatal care, many risks associated with twin pregnancies can be managed effectively.

Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are the same sex and share the same genes. Sometimes called paternal twins, identical twins ...

A mum from Pennsylvania, in the US gave birth to twins and couldn't believe how different they looked four months later.

Around 1 in 250 pregnancies result in identical or “monozygotic” twins, but the mechanism behind monozygotic twinning has remained elusive, partly because the phenomenon is so rare and partly due to ...

Although all conjoined twins are identical (monozygotic), recent genetic analyses have revealed that there are differences in genes, including those linked to growth and development.

Identical, or monozygotic, twins develop from the same fertilized egg that splits into two. These twins are the same sex and share the same genes. Sometimes called paternal twins, identical twins ...