In Corn, Red Kernels (PP) Are Typically Dominant to White

question 22

Essay

In corn, red kernels (PP) are typically dominant to white kernels (pp). A red plant was crossed with a white plant to produce a Pp heterozygote with red kernels. However, in one ear of corn, a partially white kernel appeared unexpectedly. This kernel was grown into an adult plant, and for several generations of crosses, the offspring of this original kernel all had a mix of partially red and partially white kernels. However, when the seeds were grown in the presence of a demethylating drug, all of the resulting plants had red kernels. Explain why the mixed-color kernel appeared, why the offspring of this kernel also had the mixed-color phenotype, and why the demethylating drug had its effect.

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Definitions:

Demand Curve

A visual representation detailing how consumer demand for a product changes in relation to its price.

Cost Function

A cost function describes the cost of producing a certain number of goods or services, taking into account factors like labor and materials.

Cartel Arrangement

An agreement among competing firms to control prices or production in a particular market, often to maximize collective profits.

Demand Curve

A visual chart that illustrates the connection between a product's price and the amount of it that consumers want to buy.