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Node in Biological Definition

Gene regulatory network

... outputs being the level of gene expression . The node itself can also be viewed as a function which can ... each input, and each output is represented by a node in a directed graph in which there is an arrow from one node to another if and only if there is a causal link ...

Phylogenetic tree

... of a cladogram . In a phylogenetic tree, each node with descendants represents the most recent ... edge lengths correspond to time estimates. Each node in a phylogenetic tree is called a taxonomic ... tree is a directed tree with a unique node corresponding to the (usually imputed) most ...

Cladistics

... A vertical orientation yields a cladogram reminiscent of a tree . In a cladogram, all organisms lie at the leaves, and each inner node is ideally binary (two-way). The two taxa on either side of a split are called sister taxa or sister groups . Each subtree, whether it only ...

Leaf

... the stem; or distichous if not rotated, but all two-ranked, in the same plane. Whorled — three or more leaves attach at each point or node on the stem. As with opposite leaves, successive whorls may or may not be decussate, rotated by half the angle between the leaves in the whorl (i.e., ...

Replication

... shared memory systems, where it may happened that many nodes of the system share the same page of the memory - which usually means, that each node have separate copy (replica) of this page. In statistics replication refers to repeated measurement of a phenomenon, so that the variability ...
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