Modern dog breeds are largely the result of 160 years of owners crossbreeding certain dogs in order to select for particular physical appearances. Owners often say that some breeds are also more likely than others to have particular personality traits--basset bounds are affectionate; boxers are easy to train--but Kathleen Morrill and colleagues found through a combination of owner surveys and DNA sequencing of 2,000 dogs that while physical traits are predictably heritable among purebred dogs, behavior varies widely among dogs of the same breed.<br/><br/>Which choice best states the main idea of the text | ClassNotes

Feb 03, 2024

Modern dog breeds are largely the result of 160 years of owners crossbreeding certain dogs in order to select for particular physical appearances. Owners often say that some breeds are also more likely than others to have particular personality traits--basset bounds are affectionate; boxers are easy to train--but Kathleen Morrill and colleagues found through a combination of owner surveys and DNA sequencing of 2,000 dogs that while physical traits are predictably heritable among purebred dogs, behavior varies widely among dogs of the same breed. Which choice best states the main idea of the text?

Difficulty: Hard

Dog breeds would not exist without many years of human intervention in dogs' reproduction.

Research fails to confirm a commonly held belief about dog breeds and behavior.

The dog breeds most popular among owners have often changed over the past 160 years.

A study of dog breeds is notable for its usage of both opinion surveys and DNA sequencing.