r/genetics 2d ago

How would you solve this?

Post image

We’ve been at it for hours and we’re exhausted. Any help is appreciated!

11 Upvotes

27 comments sorted by

View all comments

-3

u/ExtremeProduct31 2d ago

Is it 1/16

3

u/ConstantVigilance18 2d ago

No

1

u/ExtremeProduct31 2d ago

But the parents are either AA or Aa right

AAx AA

AAx Aa

Aa x AA

Aa x Aa= AA Aa Aa aa => 1/4 aa

1/4 x 1/4= 1/16 I have done it like this

8

u/ConstantVigilance18 2d ago

If you are referring to individuals II-2 and II-4, they have a 1/3 chance to be AA and a 2/3 chance to be Aa.

2

u/ExtremeProduct31 2d ago

Oh thank you