Now remember Equilibrium? Where we consider
a population whose gene pool that the sum of
all the alleles must equal 100%, but we may
have different ratios? Such as 80% have S and
20% have s? Well maybe we should look at where
these laws collapse and where they fail to work
as expected.
There are five reasons when the law of
equilibrium fails to work. These are:
1.Mutation
2.Gene migration
3.Genetic drift
4.Non-random mating
5.Natural selection
Let us go through each one.
Mutation
A mutation is the change in genetic
material, which can give rise to heritable
variations in the offspring. In nature maybe
exposure to radiation will do this. In this
case the result will be a mutation of the
plants genetic code and thus when it breeds
with the same population it is effectively a
‘Migration’ of foreign genetic material. Even
though nothing new has been added into the
population from an outside population, the
mutation of one single plant will act just like
