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Definition noun, plural: beta barrels A large β-sheet that twists and coils to form a closed structure where the first... Read More

Polypeptide Definition Biology What are polypeptides? A polypeptide is defined as a polymer of amino acids joined together... Read More

shell 1. A hard outside covering, as of a fruit or an animal. Specifically: The covering, or outside part, of a nut; as, a... Read More

Dominance is the state of being supreme or dominant. Community dominance refers to the form of dominance where certain... Read More

In order to keep the process of biological existence ever-going, the phenomenon of cell multiplication is very important.... Read More

Chordata Definition What is Chordata? Chordata is the phylum of the animal kingdom that includes a large number of animal... Read More

Centrosome Definition What is a centrosome? The centrosome is considered to be the main microtubule-organizing... Read More

Cilia Definition Cilia are hair-like structures found on the surface of many types of cells, including some mammalian... Read More

Definition noun, plural: transmembrane proteins A protein that spans the entire biological... Read More

Definition noun, plural: alpha helices A right-handed coiled conformation common in many proteins in which the resulting... Read More

Definition noun A glass syringe in which the needle slips and fits snugly onto the tip of the syringe barrel Supplement In... Read More

Growth All living organisms begin in the same form: as a single cell. That cell will divide and the resulting cells will... Read More

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