A geneticist is studying a pedigree that shows the family history of a recessive genetic

disease. Which of the following pedigrees shows an impossible relationship? (

The answer is D. The whole square, and half the circle, and a completely empty circle. How would that be possible? Their child would have at least a 50% chance of having the illness. If you need more help let me know!

Reproduction and Development unit test

1a
2a
3a
4c
5c
6d
7b
8c
9d
10b
11b
12d
13angiosperm

You did not give answer choice or an image.

But, I'll tell you what would be impossible. It would be absolutely impossible if they both did not have the recessive genetic disease, and the child would not be at risk or 100% guaranteed to get the disease.

It would be 100% possible for both Square 1 and Circle 1 to have the disease, and pass it to their offspring.

thank you, anna

Thanks anna

Thanks ana

I took the test and Miami is correct

is mimi corect?

yes he is thank you for your services im jk

I not sure