identical twins are as close as nature can get to human cloning tiny replicas
can get to human cloning tiny replicas
can get to human cloning tiny replicas with identical genes wonders of human
with identical genes wonders of human
with identical genes wonders of human reproduction some are amazing mirror
reproduction some are amazing mirror
reproduction some are amazing mirror images their movements perfectly in sync
images their movements perfectly in sync
images their movements perfectly in sync others can be separated for years only
others can be separated for years only
others can be separated for years only to discover they share strikingly
to discover they share strikingly
to discover they share strikingly similar jobs tastes and hobbies
but not all identical twins are as
but not all identical twins are as identical as we once thought advances in
identical as we once thought advances in
identical as we once thought advances in genetic science are revealing key
genetic science are revealing key
genetic science are revealing key differences in personality development
differences in personality development
differences in personality development disease even sexuality
through state-of-the-art 4d ultrasound
through state-of-the-art 4d ultrasound scans scientifically accurate visual
scans scientifically accurate visual
scans scientifically accurate visual effects and microscopy footage we delve
effects and microscopy footage we delve
effects and microscopy footage we delve into the complex a delicate world of
into the complex a delicate world of
into the complex a delicate world of twins in the womb this rapidly
twins in the womb this rapidly
twins in the womb this rapidly multiplying collection of cells is
multiplying collection of cells is
multiplying collection of cells is called a blastocyst and it’s here that
called a blastocyst and it’s here that
called a blastocyst and it’s here that nature’s most remarkable reproductive
nature’s most remarkable reproductive
nature’s most remarkable reproductive anomaly can sometimes occur it’s an
anomaly can sometimes occur it’s an
anomaly can sometimes occur it’s an event so mysterious
event so mysterious
event so mysterious it wasn’t witnessed until recently
several days after conception the
several days after conception the blastocyst spontaneously splits into
each new blastocyst is composed of cells
each new blastocyst is composed of cells with identical sets of chromosomes and
with identical sets of chromosomes and
with identical sets of chromosomes and they carry the same arrangement of genes
they carry the same arrangement of genes
they carry the same arrangement of genes along their length the two blastocysts
along their length the two blastocysts
along their length the two blastocysts now have the potential to develop into
now have the potential to develop into
now have the potential to develop into identical twins
fifteen weeks into their journey from
fifteen weeks into their journey from conception to birth the identical twins
conception to birth the identical twins
conception to birth the identical twins move for the first time
they interact and explore their
they interact and explore their environment with their hands and feet
environment with their hands and feet
environment with their hands and feet touching and even appearing to kiss
eventually their mother will feel the
eventually their mother will feel the same kicks each twin feels in utero
sometimes they appear aggressive other
sometimes they appear aggressive other times almost caring they look identical
times almost caring they look identical
times almost caring they look identical but unseen influences may already be
but unseen influences may already be
but unseen influences may already be taking effect ones that could subtly
taking effect ones that could subtly
taking effect ones that could subtly alter the expression of genes in their
alter the expression of genes in their
alter the expression of genes in their growing bodies and new research claims
growing bodies and new research claims
growing bodies and new research claims these subtle changes to a genes
these subtle changes to a genes
these subtle changes to a genes expression can be passed down through
expression can be passed down through
expression can be passed down through generations without affecting the
generations without affecting the
generations without affecting the underlying DNA researchers studying a
underlying DNA researchers studying a
underlying DNA researchers studying a register of births and deaths in a
register of births and deaths in a
register of births and deaths in a remote region of northern Sweden noticed
remote region of northern Sweden noticed
remote region of northern Sweden noticed a peculiar phenomenon a generation of
a peculiar phenomenon a generation of
a peculiar phenomenon a generation of boys who experienced a famine had
boys who experienced a famine had
boys who experienced a famine had grandchildren who led longer lives
on the other hand descendants of the
on the other hand descendants of the boys who enjoyed plentiful food as
boys who enjoyed plentiful food as
boys who enjoyed plentiful food as children experienced an increased risk
children experienced an increased risk
children experienced an increased risk of diabetes cardiovascular disease and
of diabetes cardiovascular disease and
of diabetes cardiovascular disease and higher mortality rates the effect of
higher mortality rates the effect of
higher mortality rates the effect of famine was especially strong if the boy
famine was especially strong if the boy
famine was especially strong if the boy was just about to start producing
was just about to start producing
was just about to start producing reproductive cells his sperm
it seems the genetic makeup of these
it seems the genetic makeup of these reproductive cells were directly albeit
reproductive cells were directly albeit
reproductive cells were directly albeit subtly altered by the famine or feast
subtly altered by the famine or feast
subtly altered by the famine or feast through their sperm they passed on a
through their sperm they passed on a
through their sperm they passed on a nutritional legacy to future generations
the more we explore the hidden world of
the more we explore the hidden world of epigenetics the more it seems we are not
epigenetics the more it seems we are not
epigenetics the more it seems we are not simply a product of our genes it’s 35
simply a product of our genes it’s 35
simply a product of our genes it’s 35 weeks
they have hair eyelashes nails and can
they have hair eyelashes nails and can open and close their eyes and mouths
conditions in the womb are cramped even
conditions in the womb are cramped even though at four-and-a-half pounds each
though at four-and-a-half pounds each
though at four-and-a-half pounds each weighs a third less than the average
weighs a third less than the average
weighs a third less than the average baby our twins are ready to be born at
baby our twins are ready to be born at
baby our twins are ready to be born at week 35 by c-section it’s not always
week 35 by c-section it’s not always
week 35 by c-section it’s not always obvious to the obstetrician whether the
obvious to the obstetrician whether the
obvious to the obstetrician whether the twins are identical or fraternal but our
twins are identical or fraternal but our
twins are identical or fraternal but our twins share the placenta the clearest
twins share the placenta the clearest
twins share the placenta the clearest indication that they’re identical
after an extraordinary journey our to
after an extraordinary journey our to reproductive marbles have made it safely
reproductive marbles have made it safely
reproductive marbles have made it safely into the world they may look alike but
into the world they may look alike but
into the world they may look alike but we know they’re already different
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