How must spindle microtubules attach to chromosomes during prometaphase of meiosis I?
1. Microtubules attach at the centrosomes.
2. Spindle microtubules from one pole attach to one kinetochore, and spindle microtubules from the other pole attach to the other kinetochore in a pair of sister chromatids, just like in mitosis.
3. Spindle microtubules from one pole must attach to both kinetochores in a pair of sister chromatids.
4. Microtubules attach using their minus (slow assembling) ends.
5. Microtubules attach to the chiasma
