In Owlicoms white coat color is recessive to red coat color

In Owlicoms, white coat color is recessive to red coat color, and lack of a horn is recessive to presence of a horn. These two traits segregate independently. A pure-breeding white Owlicom with a horn is crossed to an Owlicom that is heterozygous for both traits. Draw a Punnett Square to represent this cross. Make sure to define symbols clearly What will be the genotypic and phenotypic ratios of the F1 generation?

Solution

Red color----------dominant allele-------R

White color----------recessive allele-------r

Horn-------------dominant allele-------H

No horn ----------recessive allele-------h

Pure breeding

white with horn –genotype= HHrr

============

Heterozygous for both alleles –genotype= HhRr

Cross          HHrr     x HhRr

gametes

HR

Hr

hR

hr

Hr

Hr HR

Horn

red

Hr Hr

Horn

white

Hr hR

Horn

red

Hr hr

Horn

white

gametes	HR	Hr	hR	hr
Hr	Hr HR Horn red	Hr Hr Horn white	Hr hR Horn red	Hr hr Horn white