During cell division, the chromosomes are held together at the? A. spindle fibers
B. cell membrane
C. centromere
D. nucleolus

C

Explanation: The two chromatids of a duplicated chromosome are held together at a region of DNA called the centromere. Centromeres are the attachment points for microtubules, which are responsible for the guiding the movement of chromosomes during mitosis and meiosis.

i have to report this, it doesn't relate to biology

the answer would be 2, if crossing over doesn’t occur 2 out of 4 of the daughter cells will have that allele.

hope this : )