15 results found

Search Results for: homology

Homology

Definition noun, plural: homologies (1) A degree of similarity, as in position or structure, and that may indicate a common... Read More

Sequence homology

sequence homology (Science: molecular biology) Strictly, refers to the situation where nucleic acid or protein sequences are... Read More

Homologous structures

Homologous Structures Definition What are homologous structures? Before we define that, let us first identify the meaning... Read More

Analogy

Definition noun, plural: analogies (evolutionary biology) Structural or behavioural similarity in terms of functions between... Read More

Sh domains

SH domains (Science: molecular biology) src homology domains: domains of protein that, from their homology with src are... Read More

Thrombin

Definition noun An activated form of factor II that is generated in blood clotting and acts as a catalyst during the... Read More

Homologous

Homologous Definition What is homologous? In general science, the word “homologous” is used to show a degree of... Read More

Ligand gated ion channels

Ligand gated ion channel a transmembrane ion channel whose permeability is increased by the binding of a specific ligand,... Read More

Orthology

Science (genetics, molecular biology, genomics) genes or gene products that are homologous (descended from a common... Read More

Paralogy

Science (genetics, molecular biology, genomics) genes or gene products that are homologous (descended from a common... Read More

Gene family

Definition noun, plural: gene families A set of genes with a known homology and are, in general, biochemically... Read More

Homoplasy

Definition noun Similar biological trait acquired by species from different (unrelated) lineages Supplement There are... Read More

Apomorphy

Apomorphy Definition Apomorphy (biology definition): A derived trait or characteristic that identifies a species or a... Read More

Polyphyletic

Definition adjective Taxonomic groups that have similar character states that descends from one or more ancestral... Read More

A New Theory on the Origin of Animal Multicellularity

Multicellular life, purportedly, started around 600 million years ago. From single-celled, certain organisms eventually... Read More