Which Statement Is Accurate If the First True Cell Arose

question 30

Multiple Choice

Which statement is accurate if the first true cell arose by the RNA-first hypothesis?

• A) The first cell had RNA genes that could have specified protein synthesis.
• B) Proteins in the protocell would have evolved the ability to synthesize DNA.
• C) RNA genes replicated because of the presence of proteins.
• D) All of these statements support the RNA-first hypothesis.
• E) None of these statements support the RNA-first hypothesis.

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Definitions:

Cerebellum

A part of the brain located at the back of the skull, crucial for motor control, balance, and coordination.

Peripheral Nervous System

Part of the nervous system that consists of the nerves and ganglia outside of the brain and spinal cord, responsible for connecting the central nervous system to limbs and organs.

Medulla

A portion of the brainstem that controls vital functions such as heartbeat and breathing.

Brain

The complex organ located in the skull, responsible for coordinating sensory information, and directing motor responses; center of the nervous system.