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How many
races in the
world?
Question please
I believe
there is one
per
continent
In school they
talked about
four races:
white, yellow,
black and red.
I don´t know
how many
there are but
one is
superior…
¡white!
Let´s investigate how
many races there
are
And if one is
superior to the
others
The answer are in the mitochondria
Mitochondria are minute structures described as the
“powerhouse of the cell”
Chromosomes
(DNA) are
inherited from
the mother
and father
But mitochondrial
DNA is only
inherited from
the mother
The egg cell contains relatively few mitochondria, but
it is these mitochondria that survive and divide to
populate the cells of the adult organism, a pattern
known as maternal inheritance.
From mother
To daughter
To
granddaughter…
Mitochondria pass
“Every drop of human blood contains a history
book written in the language of our genes”
IF WE REWIND THE HUMAN HISTORY MOVIE
We could go back generation to
generation, until our origins
And we would get to the
primary womb, the mother of
all human beings that inhabit
this world
According to some theories, all female
mitochondria are as if they were interlaced
in a large umbilical cord & lead to Africa
Genetics theory postulates that Africa
was the cradle of Humanity
150 thousand years ago
in Kenya, Tanzania, Ethiopia
the first human beings went forward
There lived that woman.
From her descended the 7 billion
that inhabit this world.
She wasn´t the first or only mother.
But only she had daughters
who had daughters
who had daughters
who had daughters…
who survived without interruption
until today.
About 70 thousand years ago
a small clan emigrated from Africa.
Some traveled west and made it to Europe.
Others took the east road.
Crossed Asia, climbed up the Siberian steppe…
and made it to America.
Mitochondria help us track
the route that the first humans took
out of Africa to the rest of the world.
¡Wait a minute!
According to this
theory, if Africa is
the cradle
Humanity… ¿Does
that mean that Eve
was black?
¡Exactly!
(Except that
there are
other
theories,
especially the
Bible.)
¿And what… our
ancestors were
black?
¡Exactly!
(According to
this theory.)
It´s better to say
skin color.
Because there is
only one race- the
human race
And then,
¿Where do so
many races come
from?
¡That´s bull!
¿Then why
I´m I white?
Because your
are missing
Melanin
Melanin is the pigment that
gives color to the skin.
In Africa, with so much
sun, skin is dark for
protection against
ultraviolet rays that
produce cancer.
When our ancestors traveled
to cold climates
they began losing melanin in order to
capture more of the sun´s rays that
allowed them to produce vitamin D
Scientifically speaking
a white is a
discolored negro
The difference between
“human races” consist in
a little more or
a little less melanin
This doesn´t convince
me because in Canada
and other cold climate
countries live people
who are black and they
don´t discolor
The change in skin color does not happen in one
generation, but across thousands of years.
Nature always works with patience.
My brother
from another
mother
Skin color
hair
curly or straight
noses
short or long
eyes
elongated or round
are adaptations
of the human body
to the different
environments
in which our ancestors
have lived.
THERE AREN´T DIFFERENT RACES
JUST DIFFERENT CLIMATES
WE HAVE
THE SAME
BLOOD
WE BELONG
TO THE SAME
FAMILY
WE COME FROM
THE SAME
PLACE
FIN, i.e. there is
only one race,
the human race,
whether we
believe that it
started black
and turned
white, or started
white and
turned black,
and brown.
¡Pass it on!

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Number of races in the world

  • 1. How many races in the world? Question please
  • 2. I believe there is one per continent In school they talked about four races: white, yellow, black and red. I don´t know how many there are but one is superior… ¡white! Let´s investigate how many races there are And if one is superior to the others
  • 3. The answer are in the mitochondria Mitochondria are minute structures described as the “powerhouse of the cell”
  • 4. Chromosomes (DNA) are inherited from the mother and father But mitochondrial DNA is only inherited from the mother The egg cell contains relatively few mitochondria, but it is these mitochondria that survive and divide to populate the cells of the adult organism, a pattern known as maternal inheritance.
  • 5. From mother To daughter To granddaughter… Mitochondria pass “Every drop of human blood contains a history book written in the language of our genes”
  • 6. IF WE REWIND THE HUMAN HISTORY MOVIE We could go back generation to generation, until our origins And we would get to the primary womb, the mother of all human beings that inhabit this world
  • 7. According to some theories, all female mitochondria are as if they were interlaced in a large umbilical cord & lead to Africa
  • 8. Genetics theory postulates that Africa was the cradle of Humanity 150 thousand years ago in Kenya, Tanzania, Ethiopia the first human beings went forward
  • 9. There lived that woman. From her descended the 7 billion that inhabit this world. She wasn´t the first or only mother. But only she had daughters who had daughters who had daughters who had daughters… who survived without interruption until today.
  • 10. About 70 thousand years ago a small clan emigrated from Africa. Some traveled west and made it to Europe. Others took the east road. Crossed Asia, climbed up the Siberian steppe… and made it to America.
  • 11. Mitochondria help us track the route that the first humans took out of Africa to the rest of the world.
  • 12. ¡Wait a minute! According to this theory, if Africa is the cradle Humanity… ¿Does that mean that Eve was black? ¡Exactly! (Except that there are other theories, especially the Bible.)
  • 13. ¿And what… our ancestors were black? ¡Exactly! (According to this theory.)
  • 14. It´s better to say skin color. Because there is only one race- the human race And then, ¿Where do so many races come from?
  • 15. ¡That´s bull! ¿Then why I´m I white? Because your are missing Melanin
  • 16. Melanin is the pigment that gives color to the skin. In Africa, with so much sun, skin is dark for protection against ultraviolet rays that produce cancer.
  • 17. When our ancestors traveled to cold climates they began losing melanin in order to capture more of the sun´s rays that allowed them to produce vitamin D
  • 18. Scientifically speaking a white is a discolored negro The difference between “human races” consist in a little more or a little less melanin
  • 19. This doesn´t convince me because in Canada and other cold climate countries live people who are black and they don´t discolor The change in skin color does not happen in one generation, but across thousands of years. Nature always works with patience. My brother from another mother
  • 20. Skin color hair curly or straight noses short or long eyes elongated or round are adaptations of the human body to the different environments in which our ancestors have lived. THERE AREN´T DIFFERENT RACES JUST DIFFERENT CLIMATES
  • 21. WE HAVE THE SAME BLOOD WE BELONG TO THE SAME FAMILY WE COME FROM THE SAME PLACE
  • 22. FIN, i.e. there is only one race, the human race, whether we believe that it started black and turned white, or started white and turned black, and brown. ¡Pass it on!