Identical twins
Identical Twins
Identical twins (pronunciation: /aɪˈdɛntɪkəl twɪnz/), also known as monozygotic twins, are a type of twin that develop from one zygote, which splits and forms two embryos. The term is derived from the Greek words 'mono' meaning 'one' and 'zygotos' meaning 'yoked or joined'.
Development
Identical twins occur when a single egg is fertilized to form one zygote (hence, "monozygotic") which then divides into two separate embryos. Unlike fraternal twins, the twins share the same genetic material, making them genetically identical.
Characteristics
Identical twins share the same genetic material, which often results in them having similar physical characteristics and abilities. However, environmental factors can lead to differences in their phenotypes.
Health Implications
Identical twins can provide valuable information for genetic research, as they share the same genetic material. However, they may also be at risk for certain genetic conditions, such as Twin-to-twin transfusion syndrome.
Related Terms
- Twin
- Fraternal twins
- Conjoined twins
- Twin-to-twin transfusion syndrome
- Zygote
- Egg (biology)
- Phenotype
External links
- Medical encyclopedia article on Identical twins
- Wikipedia's article - Identical twins
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