Dr. Blackwell caused rats to stop breathing when he lesioned their MEDULLA.
When doctor Blackwell induced a lesion in the rats' medulla, he discovered that the rats stopped breathing. He explained this observation by saying that the medulla has functional role to play in the breathing process of rats.
Oxygen, nourishment (vitamins, lipids, fats, etc.)
Answer:
1. 100%
2. 0%
3. impossible
All their offspring will have brown eyes because they will all inherit the <u>dominant </u>allele for brown eyes. They will all inherit the allele for blue eyes but since this is recessive they will now show it.
