Two Identical Twins Were Separated at Birth,one Grew Up in a Prosperous

question 24

Multiple Choice

Two identical twins were separated at birth,one grew up in a prosperous home with ample food and time for rest.The other twin was tragically abandoned and grew up in and out of foster homes and living on the streets.After more than 20 years,the two twins were reunited,but despite their identical genomes,the twins looked very different.The most noticeable difference was their difference in stature,the prosperous twin was tall and well built,while the abandoned twin was short and scrawny.How can you explain these differences?

• A)The twins actually have different genotypes.
• B)The poor twin was undernourished as a child,and as a result his genes that control height and stature were mutated,resulting in a different phenotype.
• C)The poor twin was undernourished as a child,and as a result he was unable to reach the full potential of his genes.
• D)Traits such as height and stature are are not controlled by a person's genes,rather they are determined by environmental factors,such as nutrition,rest,and exercise.
• E)Twins often have different phenotypes,because one twin gets more resources in the womb than the other.

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Definitions:

Marginal Revenue

The increase in income derived from the sale of one extra unit of a good or service.

Monopolistic Competitor

A market structure where many firms sell products that are similar but not identical, allowing for significant differentiation and competition.

Product Promotion

Marketing efforts aimed at increasing awareness and sales of a product through advertising, incentives, and public relations.

Monopolistic Competition

An arrangement in the marketplace where several businesses trade in goods that are akin but not completely identical, affording them limited market authority.