Dilutions

Question 1

Dilution series

Answer 1

Consecutive sequences of concentrations and it requires the correct ratios

Question 2

True serial dilution

Answer 2

When you require a very small concentrations of solution, very difficult to measure small quantities to make initial solution

0. 1 1 part bacterial solution, 9 parts sterile broth
1. 01 1 part mixture A, 9 parts sterile broth
2. 001 1 part mixture B, 9 parts sterile broth