bio 152 hhm1 questions

Hello.

I have 2 questions to answer on a 10 min video.

https://www.hhmi.org/biointeractive/making-fittest-natural-selection-and-adaptation

1) Which gene was modified in the dark mouse?

2) Dr. Nachman shows two different types of mice that have similar dark color but they are not related. What explains this result?

Due in an hour.

Thanks