1. Dilution Problem. A culture was diluted as follows: (1) 100mL are added to 1000mL of water. (2) 10uL from (1) are then added to 9.99mL of water. (3) A 10-2 was then made from (2) (4) 100uL from (3) are plated for a pour plate and incubated. There were 120 colonies counted on one half of the plate following incubation. a) What was the overall dilution? b) How many cfu/mL were present in the original culture? c) How many colonies would have been present if 10uL of the dilution was used for the pour plate? d) How many mL are needed to prepare a 10^-3 dilution from 10uL of diluent? Please show diagram picture of dilution as well..