94 results found

Search Results for: differentiation

Differentiation

Definition noun (developmental biology) The normal process by which a less specialized cell develops or matures to become... Read More

Cell differentiation

Definition noun The normal process by which a less specialized cell develops or matures to possess a more distinct form... Read More

Dedifferentiation

Definition noun (developmental biology) A cellular process in which a differentiated cell loses its special form or... Read More

Chondroblast

There are two forms of cells in cartilage: chondroblasts and chondrocytes. The chondroblasts are cells that secrete the... Read More

Interspecific competition

Interspecific Competition Definition In Biology, competition is defined as the process that occurs among species that have... Read More

Gene Regulation in Eukaryotes

Reviewed by: Mary Anne Clark, Ph.D. Eukaryotic Gene Structure In prokaryotes the DNA is located in the... Read More

Pluripotent

Pluripotent Definition What is pluripotent? In biology, the term "pluripotent" means capable of developing into... Read More

Totipotent

Totipotent Definition What is totipotent? In general terms, totipotency is defined as the ability of a single cell to... Read More

Spermiogenesis

Spermiogenesis Definition Spermiogenesis is the stage of spermatogenesis wherein the spermatids differentiate into mature... Read More

Maturation

Definition noun, plural: maturations (1) The process of differentiation (2) The process of becoming... Read More

Spermatid

Spermatid Definition What are spermatids? Let us define spermatid and understand its role in reproduction. A spermatid... Read More

Stem cell

Definition noun, plural: stem cells (1) An unspecialized cell characterized by the ability to self-renew by mitosis while... Read More

Gamete

Definition of Gamete What is a gamete? A gamete is the mature reproductive or sex cell that contains a haploid number of... Read More

Ecosystem diversity

Ecosystem Diversity Definition What is ecosystem diversity? Ecosystem diversity deals with the study of different... Read More

Myogenesis

Definition noun (embryology) The formation of muscle tissues through the differentiation of progenitor cells myoblasts... Read More

Genetic Control – On and Off Genes

Reviewed by: Mary Anne Clark, Ph.D. This lesson looks at the various factors involved that affect growth and... Read More

Cytokinin

Plants require growth hormones for their regulated growth. Plant growth hormones or regulators (PGRs) are small organic... Read More

Growth

Growth Definition What is growth in biology? Growth is the irreversible increase of an organism’s size over a given... Read More

Myoblast

Definition noun, plural: myoblasts The embryonic progenitor cell of the muscle cell Supplement Myoblasts are the embryonic... Read More

Bias

Bias (Science: statistics) in a clinical trial, bias refers to effects that a conclusion that may be incorrect as, for... Read More

Cytoskeleton

Definition noun plural: cytoskeletons cy·to·skel·e·ton (cell biology) The lattice or internal framework of a cell... Read More

Embryo

Definition noun, plural: embryos (zoology) A multicellular organism that primarily undergoes extensive and rapid growth and... 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

Nucleosome

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

Symbiosis

Symbiosis Definition What is symbiosis? Symbiosis can be defined as any kind of relationship or interaction between two... Read More

Partial

partial 1. Of, pertaining to, or affecting, a part only; not general or universal; not total or entire; as, a partial... Read More

Autocrine signaling

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

Roots

Upon seed germination, the embryo root, called the radicle, grows and develops into the first root. The radicle may thicken... Read More

Allopatric speciation

We can define speciation as a process by which the novel genetically independent group of organisms are formed through the... Read More

Genetic drift

Genetic Drift Definition What is genetic drift in simple terms? The simple definition of genetic drift ( also referred to... Read More

Ecological niche

Ecological Niche Definition An ecological niche refers to the interrelationship of a species with all the biotic and... 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

Antennapedia

Definition noun A hox gene first described in Drosophila, which is responsible for the formation and differentiation of the... Read More

Incomplete dominance

Incomplete Dominance Definition After Gregor Mendel discovered inheritance laws, the term ''incomplete dominance'' was... Read More

Regeneration in humans – Finding the gene switch

Regeneration in humans is much more limited compared in other animals. Say for instance when one lost a limb, much as well... Read More

Neuronal sprouting

Definition noun (cell biology) The process whereby a neuron generates additional branches (outgrowths) to establish new... Read More

Circulation

Blood Blood is composed of a liquid, plasma, and blood cells such as erythrocytes (red blood cells,) leukocytes (white... Read More

First time! Human blood cell turned into a young sex cell

In essence, our body consists of two major types of cells – one group involved directly in reproducing sexually (called... Read More

Thrombopoietin

Definition noun, plural: thrombopoietins A glycoprotein hormone produced by liver and kidney associated with the production... Read More

Regulation of Organic Metabolism, Growth and Energy Balance

Organic Metabolism Events of Absorptive and Post-absorptive States. The absorptive state is the period during which... Read More