List the different magnifications you view slide specimens under. (tell me the ocular eyepiece power and the three objective lens powers.)

40x, 100x, and 400x  

Explanation:

The ocular lens (closest to your eye) usually has a 10x power.

The objective lenses (closest to the object) usually have powers of 4x, 10x, and 40x.  

Combined, they give magnifications of 40x, 100x, and 400x.

answer; i believe that the correct answer is(d) nondisjunction during meiosis;