In an Experiment, Researchers Split a Bacterial Colony in Two

question 214

Multiple Choice

In an experiment, researchers split a bacterial colony in two, allowing each of the new colonies to evolve separately.They then sequence a gene from colony 1 and colony 2.In the common ancestor, at nucleotide site 56 there is A.In colony 1, there is C; in colony 2, there is T.This is an example of a _______ substitution.

• A) single
• B) coincident
• C) parallel
• D) back
• E) multiple

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Definitions:

Polygamy

A marital practice in which an individual has more than one spouse simultaneously, recognized in some cultures and religions.

Breadwinners

Persons who earn the primary source of income for a household, supporting the family's financial needs.

Family

An intimate group of two or more people who (1) live together in a committed relationship, (2) care for one another and any children, and (3) share activities and close emotional ties.

Deteriorating

Experiencing a decline in quality, condition, or vitality over time.