In a testcross involving F1 dihybrid flies, more parental-type offspring were produced than the recombinant-type offspring. This indicates:
The two genes are located on two different chromosomes.
Chromosomes failed to separate during meiosis.
The two genes are linked and present on the same chromosome.
Both of the characters are controlled by more than one gene.
Test cross between flowers -
In a typical test cross, an organism showing a dominant phenotype is crossed with recessive parent instead of self-crossing.
- wherein
The result of typical test cross between a violet flower (w) is dominant over white flower (w) is dominant over white flower (w) is shown.
@10859
Test cross between flowers -
In a typical test cross, an organism showing a dominant phenotype is crossed with recessive parent instead of self-crossing.
- wherein
The result of typical test cross between a violet flower (w) is dominant over white flower (w) is dominant over white flower (w) is shown.
Option 1)
The two genes are located on two different chromosomes.
This is incorrect option
Option 2)
Chromosomes failed to separate during meiosis.
This is incorrect option
Option 3)
The two genes are linked and present on the same chromosome.
This is correct option
Option 4)
Both of the characters are controlled by more than one gene.
This is incorrect option