<h2>Gene interaction</h2>
Explanation:
If the homozygous dominant creepers fail to survive then it is obvious that the two creeper chickens who were crossed are heterozygous.
Genotypes of creeper parents: Cc
Types of gametes produced by them:
- Gametes with C allele.
- Gametes with c allele.
When the cross between these chickens will be done then offsprings with three types of genotype will be produced- CC, Cc and cc
Genotypic ratio: CC:Cc:cc = 1:2:1.
Phenotype for CC= creeper but dead
Cc= creeper
cc= normal
Therefore, the phenotypic ratio= creeper : normal
= 2:1