This document describes different types of twins: Identical twins have identical genetic material and are always the same sex. Non-identical twins develop from separate eggs and have only a 50% chance of sharing the same traits. Mirror twins are exact physical replicas of each other but features may be opposite sides of the body. Conjoined twins share body parts or organs. Parasitic twins are physically attached but never fully develop and cannot survive alone. Semi-identical twins share the mother's genes but only half the father's genes.

1. Types of Twins
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2. Identical Twins

3. Both babies' genetic materials,
known as chromosomes, are
identical.
Both children are born of the
same sex and share the same
genetic features like eyes and
hair color.

4. Non-identical Twins

5. Both babies belong to different
zygotes. So, the identical
chromosomal percentage is 50%.
This is why they don’t look exactly
alike and can be assigned different
sexes at birth.

6. Mirror Twins
The term "mirror twins"
describes exactly what they
are. These twins are exact
replicas of one another. That
is to say:

7. It's possible that their hair
will naturally fall in opposite
directions.
Their teeth may emerge on
opposing sides of their
On the opposite side of
their body, they may have
birthmarks.
They also have separate
dominant hands in most
cases.

8. Conjoined Twins

9. They may share body parts or
other internal organs
Conjoined twins may be joined
at one or more places, and
their type depends on where
they are joined

10. Parasitic Twin

11. Physically attached to the fully
developing twin
The parasitic twin never completes
development.
They usually don’t share organs
with the dominant twin. They can’t
survive on their own.

12. Semi-identical Twins

13. Described as identical on the mother's side
but sharing only half their father's genes.
The rare twins developed when two sperm
fertilized a single egg, which then split.

14. Thank You