Cells taken directly from an animal and cultured in vitro represent:
A)primary cell cultures
B)diploid fibroblast strains
C)continuous cell lines from human embryos
D)continuous cell lines that have been re-isolated from animal tissues

Question

Quizplus · Accepted Answer

Cells taken directly from an animal and cultured in vitro represent primary cell cultures, which are cells that have been isolated directly from living tissue and have a limited lifespan in culture. Diploid fibroblast strains and continuous cell lines are derived from primary cell cultures using different methods, while continuous cell lines that have been re-isolated from animal tissues represent cells that have undergone transformation and can divide indefinitely in culture. Continuous cell lines from human embryos are not applicable to this question as the cells are taken directly from an animal.

Cells Taken Directly from an Animal and Cultured in Vitro