Are all the sperm or all the egg cells identical to each other?

Identical twins have the same genetic material, but as you can see, every egg they both make is different. Every sperm a male makes is different.

oceans

indian ocean

pacific ocean

atlantic ocean

arctic ocean

southern ocean

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.