If the Concordance Rate for a Given Trait Is 10

question 49

Multiple Choice

If the concordance rate for a given trait is 10% for both identical and fraternal twins, this means that:

• A)genes play a major role in the development of this trait, and the effect of environment in the appearance of this trait is negligible.
• B)genes play a (relatively)minor role in the development of this trait, whereas environment plays a major role in the appearance of this trait.
• C)genes and environment contribute equally to the development of this trait.
• D)based on this data, you can make no statements regarding the role of either genes or environment in the manifestation of this trait.

---

Definitions:

Compromise of 1850

A series of laws passed in 1850 aimed at resolving the territorial and slavery controversies arising from the Mexican-American War.

Fugitive Slave Act

Legislation passed in the United States that required the return of escaped slaves to their owners, even from states where slavery was banned.

Texas

A state located in the southern region of the United States, known for its significant contributions to American history, culture, and economy.