What Causes Twins?
When a
fertilized egg splits into two, both cells start to develop in the normal way.
They get
implanted in the womb close together and as a result, two babies or twins are developed.
Twins can be
identical or
non-identical. Identical twins occur when a single fertilized egg splits into two.
They are
of the same sex and share the same features, such as hair colour, height and look very much
alike. Both share
the same placenta.
Non-identical twins
are the result of two separate eggs being fertilized at the same time. They are
nourished by
separate placentas.
They may or may not be of the same sex and bear not much
similarities.
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