11. when does the nuclear membrane dissolve in mitosis?



12. human cells contain 46 chromosomes before mitosis. how many do they have after mitosis?



13. during anaphase, what structures are attached to the centromeres?



14. describe the function of the centriole in animal cells.



15. when do chromosomes become visible in mitosis?



16. chromatids move to opposite poles of a cell during anaphase and telophase. what appears to be the mechanism for the pulling action?



17. how can you tell whether cells in mitosis are animal cells or plant cells?



18. what are the main events that occur during interphase?

11) prophase
12)46
13)spindle fibers
14)the centriole  basically helps split the cell by forming the spindle fibers which split the chromosomes in half
15)Prophase
16)honestly I'm confused as to what this is asking, spindle fibers? 
17)well, plant cells have a cell wall and have a central vacuole, while animal cells lack both of these things.
18) Basically these three stages occur: g1; cell grows and sythesizes proteins s1:the cell creates dna g2: the cell preps for division

The answer would be c, white eyes are homozygous recessive. in the early 1900s, morgan conducted several experiments with vinegar  flies (drosophila). one  sample revealed an anomaly: a  white-eyed, single male fly. he attempted to breed this fly with the typical red-eyed females. the offspring were all red-eyed. using flies from this new generation (brother-sister pairs)  produced some red-eyed and a few white-eyed flies. the white-eyed were all male. in later experiments, he was able to produce white-eyed females. this proved that white eyes are not lethal to either sex (ruling out a and b). since the percentage of white eyes to red eyes is so low, white eyes are not a dominant trait. it would be a recessive trait. 

It was said to have happened by earthquakes, the shifts in the tectonic plates moved everything