Imagine That We Mate Two Black Labrador Dogs with Normal

question 33

Multiple Choice

Imagine that we mate two black Labrador dogs with normal vision and find that three of the puppies are like the parents,but one puppy is chocolate with normal vision and another is black with PRA (progressive retinal atrophy,a serious disease of vision) .We can conclude that

• A)the same alleles that control coat color can also cause PRA.
• B)the alleles for color and vision segregate independently during gamete formation.
• C)both of the parents are homozygous for both traits.
• D)the alleles for color and vision segregate dependently during gamete formation.

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Definitions:

Marginal Revenue

The additional revenue that a company earns from selling one more unit of a product.

Monopolistic Competitor

A market structure where many companies sell products that are similar but not identical, allowing for some degree of market power.

Short Run

The length of time it takes all fixed costs to become variable costs.

Long Run

The long run is a period in economics wherein all inputs can be adjusted, and there are no fixed costs, allowing full operational flexibility.