2006-08-04 23:12:56 · 5 answers · asked by linyii 1 in Science & Mathematics ➔ Chemistry
Because rats (not usually mice) have a lot of the same DNA as humans (something like 90%), they're easy to breed, easy to study, easy to look after and are quite small - and everyone else does research on them, so lots is known about them.
2006-08-04 23:18:32 · answer #1 · answered by Mordent 7 · 3⤊ 0⤋
Because they have they same Internal Organs as Humans.
2006-08-04 23:19:27 · answer #2 · answered by DOC AGA 2 · 0⤊ 0⤋
The reasons are: they are easy to care for (cheap), they breed quickly, produce many young, and they are mammals.
2006-08-04 23:19:09 · answer #3 · answered by wally4u_1968 3 · 0⤊ 0⤋
both mice and pigs are very similar genetically to humans.
2006-08-04 23:25:41 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Because the mouse can interbreed and can produce a very large colony in a very short period of time...... they grow very fast and also very much suitable for testing......
Peace'
2006-08-04 23:17:07 · answer #5 · answered by rdx 2 · 0⤊ 0⤋