Answer:
Option A,
Step-by-step explanation:
Given -
Frequency of change of base pair
per generation
To calculate the number of base pair changes , the following formula can be used -
Number of base pair changes
frequency of base pair change per generation per base pair
total number of base pairs
total number of generations
Substituting the given values in able equation we get -
Number of base pair changes
Hence, option A,
is correct.