Semi-identical twins 'identified for only the second time' - BBC News - identical twins different sex

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Twin - Wikipedia identical twins different sex


Learn the difference between fraternal and identical twins and how it determines whether they can be different sexes.

In fraternal twins, two sperm fertilize two separate eggs, yielding twins that share In addition, the girl and boy each have male and female sex.

Twins are two offspring produced by the same pregnancy. Twins can be either monozygotic . Another cause of difference between monozygotic twins is epigenetic .. When monozygotic twins are born with different sexes it is because of.

BENIRSCHKE K, BROWNHILL LE. HETEROSEXUAL CELLS IN TESTES OF CHIMERIC MARMOSET MONKEYS. Cytogenetics. ;– [PubMed].

The boy and girl are identical on their mother's side but share only a These twins can be the same or different sexes and are no more alike.