Cell biology

Cell biology

The study of cell structure, physiological properties, interactions with the environment and life cycle.

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Cell biology

asteroid impacts

Biology; Cell biology

Hypothesis that links certain mass extinction events with the impact of a comet or asteroid, most notably the mass extinction 65 million years that caused the disappearance of dinosaurs and many ...

A respiratory disorder caused by allergies that constrict the bronchioles by inducing spasms in the muscles surrounding the lungs, by causing the bronchioles to swell, or by clogging the bronchioles ...

aster

Biology; Cell biology

Short fibers produced by cells during mitosis and meiosis. These radiate from the centriole (if it is present).

assortment

Biology; Cell biology

A way in which meiosis produces new combinations of genetic information. Paternal and maternal chromosomes line up randomly during synapsis, so each daughter cell is likely to receive an assortment ...

cerebrum

Biology; Cell biology

The part of the forebrain that includes the cerebral cortex; the largest part of the human brain.

cerebellum

Biology; Cell biology

That part of the brain concerned with fine motor coordination and body movement, posture, and balance; is part of the hindbrain and is attached to the rear portion of the brain stem.