Question

Is mitosis the same as meiosis 1?

Answer 1

Why would they have differentt names?

Answer 2

tkh asks a good question ... my knowledge of greek and latin don't help me with this word game, but the answer to your hoot could be no.
(a lot of bio and other science words are either greek or latin, or derived therefrom. so get a couple of dictionaries out and metaphorically swallow them ??????)

Answer 3

No, they're not the same.

But you do well to wonder whether they're the same because they both take a 4n parent cell and reduce it to two 2n daughter cells. Turns out the molecular status in which a cell enters meiosis I and mitosis are different - specifically, different levels of intracellular signaling molecules are present in each, and the cells express different genetic profiles (i.e., different sets of genes are being transcribed in the two cells). The cell knows before it starts meiosis that it will divide again, whereas in mitosis there are very specific checks in place to ensure that it stops there.