If a Gene from the Coelacanth That Drives the Development

question 44

Multiple Choice

If a gene from the coelacanth that drives the development of limbs in the coelacanth embryo was inserted into rats,what would the result likely be?

• A) It would likely drive the production of a lobed fin in the rat.
• B) It would likely drive production of a limb that is a cross between a normal rat limb and a lobed fin.
• C) It would likely drive the production of an almost normal rat limb.
• D) It would likely drive the production of no limb in the rat embryo.

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Definitions:

MC (Marginal Cost)

The additional cost incurred by producing one more unit of a good or service, critical in determining the optimal level of production.

AVC (Average Variable Cost)

The cost of labor, materials, and other variable expenses divided by the quantity of output produced, excluding fixed costs.

AFC (Average Fixed Cost)

The fixed costs (expenses that do not change with the level of production) divided by the quantity of goods or services produced, typically decreasing as production increases.

Marginal Cost

The cost increase that comes with producing an additional unit of a product or service.