which is 25% Homozygous Dominant (MM), 50%
Heterozygous (Mm), and 25% Homozygous Recessive
(mm).
So backcrossing will seriously control the
frequencies of a specific trait in the
offspring.
The first backcross is simply called A
BACKCROSS. Now let us see what happens when we
do our second backcross using the same PARENT
that we are keeping alive through cloning. Our
second backcross is referred too a SQUARING.
Since we are dealing with only 2 types of
offspring Mm and MM we will either repeat our
results.....
Which is the same as our results from our first
backcross........Or
(^) M m
M MM Mm
m Mm mm
(^) M m
M MM Mm
M MM Mm