The Figure Below Shows Part of the Primary Structure of DNA

question 99

Multiple Choice

The figure below shows part of the primary structure of DNA. Identify the nucleoside.

• A) A
• B) B
• C) C
• D) D

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Definitions:

Dorsal Nerve Cord

A key characteristic of chordates, running along the dorsal (back) side of the body, part of the central nervous system.

Ventral Nerve Cord

A major nerve running along the belly side of arthropods and some other invertebrates, involved in transmitting sensory and motor information.

Spinal Cord

A long, thin, tubular bundle of nervous tissue and support cells that extends from the brain, running down the back, and acts as the main pathway for information connecting the brain and peripheral nervous system.

Meninges

Layers of connective tissue that enclose the brain and spinal cord.