Answer:
B. Protein is composed of DNA which is produced in the cell
Explanation:
Production of the mature sperm cells have 4 step process beginning at puberty and throughout the male's lifetime. Spermiogenesis is the final process for production of sperm where the spermatids mature into motile spermatozoa. For humans, the spermatogenesis takes 74 days to 120 days and if the transport on the ductal system is included it would take 3 months.
B double helix and linked with hydrogen bonds
All cells in the body have the same DNA and the same genes. In organs & tissues the expression changes.
