Chapter 5.4, Problem 35AQP

Summary Introduction

To determine:

The proportion of the ${\text{F}}_{\text{2}}$ female those will have horns; if the horned female is crossed with a hornless male, and ${\text{F}}_{\text{2}}$ offspring are produced by intercrossing the ${\text{F}}_{\text{1}}$ offspring.

Introduction:

In goats presence of horn is sex influenced character, as male and female have different genotype. Allele H is responsible for the horns and allele $H^{+}$ is responsible hornless phenotype. In male H allele is dominant over $H^{+}$. In females recessive allele is responsible for horns.