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Ems Genetics
By
Pam Cohea
On the planet Hersh lived two
different organisms called the
Mords and the Mims. The Mords
lived in the Northern Hemisphere
and the Mims lived in the
Southern Hemisphere.
One beautiful fall day a Mord was walking
along and came across a Mim on the path.
It was love at first sight.
All the Mords of the Northern
Hemisphere were shocked and said
that a Mord could never marry a Mim.
All of the Mims of the Southern
Hemisphere were equally outraged
and yelled that no Mim would ever
marry a Mord. But as love will often
find a way, the Mord and Mim were
secretly married. They called
themselves the Ems.
Both the Mords and the Mims were angry
and banished the Ems to a deserted island
– where the happy couple found plenty of
food, water, oxygen and space!
• The nice couple wondered what
characteristics their children might have.
They decided to use the genetic lessons
they learned in school to discover the
possible characteristics of their children.
They remembered that each
offspring, or baby, received
genes from the dad and from
the mom. These genes made
up strands of chromosomes
located in each nucleus of
every cell. This information
determines how the offspring
will look and sometimes even
act. The stronger gene is
called the dominant gene and
the weaker gene is called the
recessive gene. Each parent
gives the offspring 2 genes for
each trait.
What color will our children be? Brown is a
dominant trait in Mords. Blue is a recessive
trait in Mims.
Brown & Brown
BB
x
blue (b)
blue (b)
Brown (B)
blue & blue
bb
Brown (B)
What size will our children be? Tall is a
dominant trait in Mords. Short is a
recessive trait in Mims.
Tall & Tall
TT
x
short (s)
short (s)
Tall (T)
short & short
ss
Tall (T)
Many other Mords and Mims came to the
island.
What color were the grandchildren of the Mords and
Mims? The parents of these children each had a
dominant and recessive gene for the color trait.
Brown & blue
Bb
x
blue (b)
Brown (B)
Brown (B)
blue & Brown
bB
blue (b)
What size were the grandchildren of the Mords and
Mims? The parents of these children each had a
dominant and recessive gene for the size trait.
Tall & short
Ts
x
short (s)
Tall (T)
Tall (T)
short & Tall
sT
short (s)
As more children were born, the Ems community
grew and grew. The Ems found out that variety is
great. It is okay to be born different colors and
sizes. The Ems lived happily ever after (and the
temperature never got hot enough to melt them
away)!
Works Sited
• http://us.mms.com/us/