Which Statement Describes Evidence in Support of the Endosymbiont Theory

question 24

Multiple Choice

Which statement describes evidence in support of the endosymbiont theory?

• A)The sequence of mitochondrial rRNA genes are most similar to the rRNA genes in purple bacteria.
• B)Mitochondrial and chloroplast DNA is organized into nucleosomes.
• C)Mitochondria and chloroplasts have genes that allow them to live independently.
• D)Mitochondria, chloroplasts, and cytoplasmic translation are inhibited by antibiotics such as chloramphenicol.

---

Definitions:

Hypothalamus

A region of the brain that coordinates many activities, including temperature regulation, thirst, hunger, and emotional activity.

Diencephalon

The between brain, which integrates sensory and motor information on its way to the cerebral cortex.

Mesencephalon

Also known as the midbrain, it is a portion of the brainstem involved in vision, hearing, motor control, sleep/wake, arousal, and temperature regulation.

Tectum

Roof (area above the ventricle) of the midbrain; its functions are sensory processing, particularly visual and auditory, and the production of orienting movements.