Which of the Following Statements About the Microtubules That Grow

question 26

Multiple Choice

Which of the following statements about the microtubules that grow out from the centrosomes is true?

• A) They pull the nuclear envelope apart.
• B) They pull the centrosomes together.
• C) They eventually become kinetochores.
• D) They eventually attach to centromeres.

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Definitions:

Myelinated axons

Nerve fibers surrounded by a protective myelin sheath, facilitating faster transmission of electrical signals in the nervous system.

Vertebral level

Relates to the specific position of a vertebra in the spine, often used to identify particular spinal nerves or injuries.

Spinal cord

A long, thin, tubular bundle of nervous tissue and support cells that extends from the brain to the lower back, transmitting neural signals between the brain and the rest of the body.

First lumbar vertebra

The topmost vertebra of the lumbar section of the spine, which supports the lower back.