Dizygotic

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Dizygotic

Dizygotic (pronunciation: di-zy-got-ic) is a term used in the field of Embryology and Genetics to describe a type of twinning where two separate ova are fertilized by two separate spermatozoa. This results in the birth of two individuals who are genetically as similar as any other siblings, sharing approximately 50% of their genes.

The term 'dizygotic' is derived from the Greek words 'di', meaning 'two', and 'zygotos', meaning 'joined or yoked'. It is often contrasted with monozygotic twinning, where a single ovum is fertilized and then splits to form two individuals who share 100% of their genes.

Related Terms

  • Monozygotic: Refers to twins who are genetically identical, resulting from the fertilization of a single egg that then splits into two.
  • Zygote: The cell resulting from the union of an ovum and a spermatozoon.
  • Fraternal Twins: Another term for dizygotic twins, as they are no more genetically similar than any other siblings.
  • Identical Twins: Another term for monozygotic twins, as they are genetically identical.

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