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What is the role of the spindle fibers during mitosis?

a. They help separate the chromosomes.

b. They break down the nuclear membrane.

c. They duplicate the DNA.

d. They make the chromosomes visible.

____ 20. The two main stages of cell division are called

a. mitosis and interphase.

b. synthesis and cytokinesis.

c. the M phase and the S phase.

d. mitosis and cytokinesis.

____ 21. During normal mitotic cell division, a parent cell that has four chromosomes will produce two daughter cells, each containing

a. two chromosomes.

b. four chromosomes.

c. eight chromosomes.

d. sixteen chromosomes.

____ 22. One difference between cell division in plant cells and in animal cells is that plant cells have a. centrioles.

b. centromeres.

c. a cell plate.

d. chromatin.

Sagot :

Answer:

spindle fibers: separate chromosomes

20:  mitosis and interphase

21: four chromosomes

22: cell plate

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