population to be sure with. 100 plants are good
but 20 or less can be dodgy.The more plants we use the more reliable
our results will be.In our example, our unknown genotype is
either BB or Bb. The Silver genotype is bb.
Let's put this information into a mathematical
series known as Punnett Squares.We start by first putting in out known
genotypes (above). We only do these
calculations for 2 parents that will breed. We
know that our recessive trait is bb and the
other is either BB or Bb, so we use the term B?
for the time being. Our next step is to fill in
the box with what we can calculate.(^) b b
B
?
(^) b b
B Bb Bb
? ?b ?b