One of the lab’s most interesting findings is that the friendly foxes exhibit physical traits not seen in the wild, such as spots in their fur and curled tails. Their ears show weird traits, too.

Question

Like puppies, young foxes have floppy ears. But the ears of domesticated foxes stay floppier for a longer time after birth, said Jennifer Johnson, a biologist who has worked with Kukekova since the early 2000s.

As the researchers peered into the reasons behind the behavioral traits, they found there isn’t just one gene responsible for the friendly and outgoing behavior.

Question
Use the excerpt to answer the question.

Which matter is left uncertain in this excerpt?

(1 point)
Responses

the difference between domesticated and wild foxes
the difference between domesticated and wild foxes

the identity of the person providing this information
the identity of the person providing this information

the physical characteristics of friendly foxes
the physical characteristics of friendly foxes

the specific gene responsible for the friendly and outgoing behavior

Answer 1

the specific gene responsible for the friendly and outgoing behavior