The Nuclear Lamina Is an Array of Intermediate Filaments That

question 57

Multiple Choice

The nuclear lamina is an array of intermediate filaments that line the inner side of the nuclear membrane. If a chemical treatment caused the lamina to disassemble, what would you expect to be the most likely immediate consequence?

• A) closing of nuclear pores
• B) the inability of the nucleus to divide during cell division
• C) a loss of genetic information from chromosomes
• D) a change in the shape of the nucleus

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Definitions:

Parasympathetic Nervous System

A branch of the autonomic nervous system responsible for conserving energy by slowing the heart rate, increasing intestinal and gland activity, and relaxing sphincter muscles in the gastrointestinal tract.

Thalamus

A vital structure in the brain that acts as a relay station, channeling sensory and motor signals to the cerebral cortex.

Insula

A region of the brain involved in consciousness, homeostasis, and the regulation of emotions.

Heart Rates

Heart rates represent the number of heartbeats per unit of time, usually expressed as beats per minute, indicating the speed of the heartbeat.