Match the product with the transgenic animal that could produce it.
| Column I | Column II |
|---|---|
| (a) Human protein (alpha-1-antitrypsin) | (i) Transgenic cow (Rosie) |
| (b) Protein for treating PKU | (ii) Transgenic mice |
| (c) Human alpha-lactalbumin | (iii) Transgenic sheep (e.g., Tracy) |
| (d) Models for Alzheimer’s | (iv) Transgenic sheep |