Search results
Results from the WOW.Com Content Network
Genes have sometimes been regarded as nodes in a network, with inputs being proteins such as transcription factors, and outputs being the level of gene expression. The node itself performs a function, and the operation of these functions have been interpreted as performing a kind of information processing within cells and determines cellular ...
If the genes of a gene family encode proteins, the term protein family is often used in an analogous manner to gene family. The expansion or contraction of gene families along a specific lineage can be due to chance, or can be the result of natural selection. [2] To distinguish between these two cases is often difficult in practice.
The most commonly seen form of higher-level organization of nucleic acids is seen in the form of chromatin which leads to its interactions with the small proteins histones. Also, the quaternary structure refers to the interactions between separate RNA units in the ribosome or spliceosome .
Gene functions in the minimal genome of the synthetic organism, Syn 3 [128] Essential genes are the set of genes thought to be critical for an organism's survival. [129] This definition assumes the abundant availability of all relevant nutrients and the absence of environmental stress. Only a small portion of an organism's genes are essential.
Synteny is a neologism meaning "on the same ribbon"; Greek: σύν, syn "along with" + ταινία, tainiā "band". This can be interpreted classically as "on the same chromosome", or in the modern sense of having the same order of genes on two (homologous) strings of DNA (or chromosomes).
Some genes encode multiple proteins, because post-translational modification (PTM) and alternative splicing provide several paths for expression. For example, glucagon and similar polypeptides (such as GLP1 and GLP2) all come (via PTM) from proglucagon, which comes from preproglucagon, which is the polypeptide that the GCG gene encodes.
Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!
This is an accepted version of this page This is the latest accepted revision, reviewed on 10 December 2024. Science of genes, heredity, and variation in living organisms This article is about the general scientific term. For the scientific journal, see Genetics (journal). For a more accessible and less technical introduction to this topic, see Introduction to genetics. For the Meghan Trainor ...