Which of the Following Statements Does NOT Provide Evidence in Support

question 25

Multiple Choice

Which of the following statements does NOT provide evidence in support of the endosymbiotic origin of eukaryotic cells?

• A) The DNA sequence of mitochondria is similar to the DNA sequence of respiring bacteria.
• B) The DNA of chloroplasts is circular like the DNA of phototrophic bacteria.
• C) Mitochondria are capable of free-living outside of a eukaryotic cell.
• D) There is a lot of sequence homology between the DNA sequences of chloroplasts and phototrophic bacteria.

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Definitions:

Brainstem

The posterior part of the brain, adjoining and structurally continuous with the spinal cord, responsible for vital life functions such as breathing, heart rate, and blood pressure.

Midbrain

An area of the brainstem involved in vision, hearing, motor control, sleep/wake, arousal (alertness), and temperature regulation.

Caffeine

A stimulant of the central nervous system found in coffee, tea, chocolate, and various medications, known for its ability to reduce fatigue and improve concentration.

Nicotine

A stimulant and potent parasympathomimetic alkaloid that is naturally produced in the nightshade family of plants and is widely used for its stimulating and relaxing effects.