What causes the pressure that allows diamonds to form in the mantle A The moons tidal forces
b upward force from rocks in the core
c gravity from the sun
d downward force from rocks in the crust

b is the best answer for this question.

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.