the cell population kinetics of excised , cultured pea roots was studied with the use of tritiated thymidine and colchicine to determine ( 1 ) the influence of excision , ( 2 ) the influence of sucrose concentration , ( 3 ) the average mitotic cycle duration , and ( 4 ) the duration of mitosis and the g ( 1 ) , s , and g ( 2 ) periods of interphase . ( 1 ) the results indicate that the process of excision causes a drop in the frequency of mitotic figures when performed either at the beginning of the culture period or after 100 hours in culture .
C0007634
the cell
C0021798
interphase