This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Medicine
True statement about transgenic mice: 
Select and explain. 
A. Developed from DNA inseion into feilized egg, B. Have same genome as parents except one or more genes, C. Homozygous are selected, D. All
D: All
Answer: D: All 
Explanation: A i.e. Developed from DNA inseion into feilized egg; B i.e. Have same genome as parents except one or more genes; C i.e. Homozygous are selected: