A key difference between primary cell cultures and secondary cell lines is that:.a. primary cell cultures tend to stay alive and divide longer than secondary cell lines. b. secondary cell lines are generally cancerously transformed and will divide indefintely. c. secondary cell lines grow slower than primary cell cultures. d. the cells in primary cell cultures do not divide.

d. the cells in primary cell cultures do not divide.

A key difference between primary cell cultures and secondary cell lines is that the cells in primary cell cultures do not divide.

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Explanation:

The main difference between primary and secondary cell culture is that the primary cell culture contains the cells directly obtained from host tissue, whereas the secondary cell culture contains sub-cultured cells from primary cell culture.

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