Which of the Following Observations About Flagella Is Accurate and Is

question 2

Multiple Choice

Which of the following observations about flagella is accurate and is consistent with the scientific conclusion that the flagella from archaea and bacteria evolved independently?

• A) The flagella of the two groups differ in size.
• B) The protein structures in the flagella are different.
• C) The mechanisms of rotation are similar.
• D) Both groups have flagella like those found in eukaryotes.

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Definitions:

Treatments

In experimental design, refers to the different conditions applied to groups of subjects to observe their effects on some outcome.

Randomized Block Experiment

An experimental design in which subjects are divided into blocks or groups with similar characteristics before being randomly assigned to different treatments.

Between-treatments Variation

The variation in data that is attributable to the differences in treatments or conditions in an experimental design.

Centrioles

Cylindrical organelles near the nucleus in animal cells, involved in cellular division and the organization of the spindle fibers.