39 results found

Search Results for: gene family

Family traits

When one thinks of family, they often think of persons who are blood-related to each other as parents to their children and... Read More

Pleiotropy

Pleiotropy Definition When one single gene starts affecting multiple traits of living organisms, this phenomenon is known... Read More

Family

Definition noun, plural: families (1) A taxonomic rank in the classification of organisms between genus and order. (2) A... Read More

Gene family

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

Silent mutation

A mutation is a change in the nucleotide sequence of a gene or a chromosome. When there is only one nucleotide involved, it... Read More

Biology

Biology Definition Biology is the branch of science that primarily deals with the structure, function, growth, evolution,... Read More

Sex-determining Region Y gene

Definition noun The gene that codes for the SRY protein, which is associated with the testicular development in many male... Read More

C4 plant

Carbon fixation is a process of taking carbon dioxide in order to synthesize sugar, such as glucose. Thus, carbon dioxide is... Read More

Nucleosome

Nucleosome Definition Every organism is made of deoxyribonucleic acid, also known as DNA. DNA is made up of numerous... Read More

Lethal mutation

Lethal Mutation Definition Genetic mutations come from changes in the DNA structure or sequencing in an organism. Often... Read More

Biosecurity and Biocontrol

By: Maria Victoria Gonzaga In the previous lesson, we learned about the importance of modern science... Read More

Cancer

Cancer definition In biology, cancer is defined as the malignant growth due to uncontrolled cell division. It is now used... Read More

Autocrine signaling

Autocrine Signaling Definition What is autocrine signaling? Autocrine signaling is a type of cell signaling wherein a cell... Read More

Adaptive Radiation

Reviewed by: Mary Anne Clark, Ph.D. When Charles Darwin was in the Galapagos Islands, one of the first things he... Read More

Myosin

Definition noun, plural: myosins A family of motor ATPases that interact with f actin filaments Supplement Myosins belong to... Read More

Fibroblast

The building block of living things is known as the cell. The cell contributes to many parts and functions of different... Read More

Degenerate

Degenerate means to become worse or less of its kind or former state. In biology, it means an entity performs the same... Read More

Apomixis

Apomixis Definition Just like any other organism, the process of reproduction is pivotal to the life cycle of plants. There... Read More

DNA polymerase II

Definition noun A DNA polymerase involved in DNA replication in prokaryotes, is encoded by polB gene, and composed of 783... Read More

Variation

Reviewed by: Mary Anne Clark, PhD Definition noun, plural: variations A difference or deviation (e.g. in... Read More

Organism

An organism refers to a living thing that has an organized structure, can react to stimuli, reproduce, grow, adapt, and... Read More

Micrococcus luteus

Definition noun A gram-positive aerobic harmless bacterium involved in the conversion of nitrate to... Read More

Angiotensinogen

Definition noun An alpha-2 globulin protein that is found in the bloodstream and release into circulation mainly by the... Read More

Notch

Definition noun, plural: notches (1) (anatomy) V-shaped cut, indentation, or nick, especially at the edge of an object or... Read More

Nucleoporin

Definition noun plural: nucleoporins Any of the family of porins that make up the nuclear pore complex Details Overview... Read More

Arthropod

Arthropod Definition What is an arthropod? An arthropod is an invertebrate living organism characterized by the presence of... Read More

Wagners syndrome

Definition noun (1) A degenerative condition of the vitreous and retinal parts of the eye, and may eventually lead to... Read More

Population

Living organisms typically prefer to live, grow and survive in groups. Except for some species that prefer solitude - both... Read More

Growth hormone

Definition noun, plural: growth hormones A polypeptide hormone that in humans and other animals essentially promotes... Read More

Cell adhesion

Cell Adhesion Definition Cell adhesion is the process in which a cell uses a specialized complex of proteins to get... Read More

De novo

De Novo Definition What is de novo? The term is an adverb and an adjective. As an adverb, it is used to denote that... Read More

Chordata

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

Fibronectin

Fibronectin (Science: protein) glycoprotein of high molecular weight (2 chains each of 250 kd linked by disulphide bonds)... Read More

Acinetobacter lwoffii

Definition Noun A gram-negative aerobic and non-fermentative bacterium involved as a normal flora of the skin, perineum and... Read More

Capsid

Capsid Definition A capsid is a three-dimensional proteinaceous capsular shell around a virus that encloses the viral... Read More

Matrix

Bodies of living organisms are organized structures. These are organized in a hierarchy of organ systems, organs, tissues,... Read More

Phylogenetics

Phylogenetics Definition Phylogenetics is the scientific study of phylogeny. It studies evolutionary relationships among... Read More

Tight junction

What are tight junctions? Tight junctions are the intercellular barrier between two neighboring endothelial and epithelial... Read More

Ras

ras (Science: oncogene) One of a family of oncogenes, first identified as transforming genes of harvey and Kirsten murine... Read More