Agriculture Reference
In-Depth Information
Homozygous Recessive: bb = Silver Bud.
So if the golden bud parent when crossed with a silver bud parent
produced only Golden Bud, then the parent must be Homozygous
Dominant for that trait. If the parent produced any silver bud then it
must be Heterozygous.
The rules are:
1. The plant with the dominant trait is always crossed with an
organism with the recessive trait.
2. If ANY offspring show the recessive trait, the unknown genotype is
heterozygous
3. If ALL the offspring have the dominant trait, the unknown genotype
is homozygous dominant
4. Large numbers are needed for reliable results.
And this is your first step into the world of breeding because:
(1) When you breed plants you want to continue a trait. Something
that you like to see on your plant or taste with your plant or the height
of your plant.
(2) When you want to continue that trait you must know if it is
Homozygous Dominant, Heterozygous or Homozygous Recessive.
(3) You can find that out by running a test cross.
So the question may arise - How do I breed for several traits,
like taste, smell, vigor and color? Well that is a big question. Maybe to
understand more about that we should learn more about Hardy-
Weinberg Equilibrium.
