Fraternal Twins Originate from the Fertilization of

question 39

Multiple Choice

Fraternal twins originate from the fertilization of

• A) a single egg cell by a single sperm cell.
• B) two egg cells by a single sperm cell.
• C) a single egg cell by two sperm cells.
• D) two egg cells by two sperm cells.

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Definitions:

Sensory Information

Data received by the senses, such as sight, hearing, smell, taste, or touch, which is then interpreted by the brain.

Descending Track

Neural pathways that transmit impulses from the brain down the spinal cord, influencing motor control and sensory information.

Central Canal

A narrow channel running along the center of the spinal cord, containing cerebrospinal fluid.

Sulci

Grooves or furrows on the brain's surface, separating adjacent gyri in the cerebral cortex.