cell generation cycle of spermatogonial germ cells and supporting cells ( future sertoli cells ) on day 9 showed marked prolongation of dna synthetic phase ( s ) , unaltered post-dna synthetic phase ( g2 ) and total cycle ( tc ) and shortening of the pre-dna synthetic phase ( g1 ) indicating a depression in dna synthesis in undernutrition .
C0012854
dna
C0000702
a