Use the Following to Answer Questions

question 31

Multiple Choice

Use the following to answer questions:
In a hypothetical experiment, researchers split a bacterial colony in two, allowing each of the new colonies to evolve separately. They then sequenced a gene from colony 1 and colony 2.
-Detection of which of the following types of substitutions requires knowing the sequence of intermediates between the common ancestor and the descendant colonies, in addition to that of the two colonies and the common ancestor?

• A) Coincident substitutions
• B) Back substitutions
• C) Multiple substitutions
• D) Both a and b
• E) Both b and c

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Definitions:

Correlational Study

A research method that examines the relationship between two or more variables, determining how they might relate or predict each other without inferring a causal relationship.

Higher Income

An economic level that surpasses the average income threshold, indicating greater financial resources or earnings.

Third Variable Problem

A confounding issue in research where an unaccounted-for variable affects the outcome of the study, potentially misleading the relationship between the variables studied.

Naturalistic Observation

An investigative technique that involves watching participants in their unaltered surroundings without any intervention from the person observing.