In a Certain Breed of Chicken, an Incompletely Dominant Gene

question 37

Short Answer

In a certain breed of chicken, an incompletely dominant gene controls color. The homozygous black, when crossed with the homozygous splashed-white, produces an intermediate gray color pattern called blue. A second gene controls the shape of the comb. The dominant allele ( R ) produces rose, while the recessive allele ( r ) produces single. Give the F ₁ and F ₂ genotypic and phenotypic ratios of a cross between a pure-breeding, black single and a pure-breeding, splashed-white rose.

---

Definitions:

Tariff

A tax imposed on imported goods and services, aimed at making foreign products more expensive and protecting the domestic industry.

Consumer Surplus

The difference between the highest price a consumer is willing to pay for a good or service and the actual price they pay.

World Trade Organization

An international organization that regulates trade between nations, aiming to ensure trade flows as smoothly, predictably, and freely as possible.

Trade Concessions

Agreements or compromises in international trade where one country offers reductions in tariffs or other trade barriers to another country, often to foster better relations or gain economic benefits.