Problem

Solutions For An Introduction to Genetic Analysis Chapter 5 Problem 2P

Step-by-Step Solution

Solution 1

Calculate the expected average number of colonies per plate

Solution:

The original suspension = 200 /ml.

The volume of solution plated on 100 petri plates = 0.2 ml

Number of colonies per plate is counted by:

Add the values:

N = is the total colony number

= is the mean colony count of 5 sample plates

f = is the dilution factor

m = is the weight of the test portion in gram

x = is the dry matter content of the sample as a percentage

By inserting the values in the given formula, an average of 40 colonies per plate can be expected.

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