Cells deficient in thymidine kinase (TK) are also killed in HAT medium.

Cells deficient in thymidine kinase (TK) are also killed in HAT medium. Correct Answer True

Cells deficient in thymidine kinase are also killed in HAT medium. It is so because pyrimidine synthesis is also blocked in the presence of aminopterin and utilization of thymidine in the HAT medium requires a functional TK.
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