Question

Scientists use PCR to check three calves born to the same cow for a gene sequence from hemoglobin. The sequence is unique to one of the three bulls (bull A, as opposed to bulls B and C) with which the cow has run during mating season.

Connect the calves with their fathers as much as possible.

Calf Has sequence?

1

No

2

No

3

Yes

Answer 1

1: Father is Bull B or Bull C
2: Father is Bull B or Bull C
3: Father is Bull A