DIHYBRID CROSS
In a species of bird, the allele for green feathers, G, is dominant to
the allele for blue feathers, g.
A second gene locus on another chromosome controls the intensity of the
colouring with the heterozygote (CD CP) intermediate
between the two homozygotes (CPCP and CDCD).
The complete range of colours is shown in the table:
Colour of
feathers
|
Intensity of colouring
|
Pale
|
Intermediate
|
Dark
|
Green
|
Light green
|
Dark green
|
Olive
|
Blue
|
Sky blue
|
Cobalt
|
Mauve
|
What would be the
expected results between cobalt and homozygous light green birds?
