Over the Course of Evolutionary Time, What Should Occur

question 81

Multiple Choice

Over the course of evolutionary time, what should occur?

• A)Methylated DNA should become fixed in the gene pools of bacterial species.
• B)Nonmethylated DNA should become fixed in the gene pools of bacteriophages.
• C)Methylated DNA should become fixed in the gene pools of bacteriophages.
• D)Methylated and nonmethylated strains should be maintained among both bacteria and bacteriophages, with ratios that vary over time.
• E)Both A and B are correct.

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Definitions:

Pooled Standard Deviation

The combined standard deviation of two or more groups of data, used when the groups have a common or similar mean but differ in sample size.

Sample Means

The average value calculated from a sample of a population.

Centerline

In statistics, the centerline often refers to the median value in a dataset or the middle line in a control chart that represents the average level of performance.

Process Capability Index

The process capability index is a statistical measure that quantifies how well a process can produce output within specified limits compared to the allowable spread of specification limits.