In This Eight-Year Experiment, 12 Populations of E

question 42

Multiple Choice

In this eight-year experiment, 12 populations of E. coli, each begun from a single cell, were grown in low-glucose conditions for 20,000 generations. Each culture was introduced to fresh growth medium every 24 hours. Occasionally, samples were removed from the populations, and their fitness in low-glucose conditions was tested against that of members sampled from the ancestral (common ancestor) E. coli population.
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Compare the bacteria in the figure above in generation 1 and generation 20,000. The bacteria in generation 1 have a greater ________.

• A) efficiency at exporting glucose from the cell to the environment
• B) ability to survive on simple sugars, other than glucose
• C) ability to synthesise glucose from amino acid precursors
• D) reliance on glycolytic enzymes

Recognize the evidence supporting the theory of continental drift and seafloor spreading.

Explain the processes involved in mid-ocean ridge formation and continental rifting.

Discuss the geological phenomena associated with divergent plate boundaries.

Describe the creation and destruction of oceanic crust in the context of plate tectonics.

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Definitions:

Row Order

Refers to the sequential arrangement of data in rows within a database or a spreadsheet.

Two-dimensional Arrays

A matrix-like structure that organizes data in rows and columns, allowing for tabular data representation.

Data Types

Refers to the different kinds of values that can be stored and manipulated in a programming language, such as integers, booleans, and strings.

Single Array

A linear data structure consisting of a collection of elements (values or variables), each identified by a single index.