42 results found

Search Results for: lineage

Lineage

Lineage (Science: genetics) term used to describe cells with a common ancestry, that is developing from the same type of... Read More

Phyletic lineage

A phyletic lineage is an unbroken series of species arranged in ancestor to descendant sequence, with each later species... Read More

Mitochondrial DNA not just from moms but also from dads?

If one wants to trace down lineage, that person could turn to the cell's powerhouse, the mitochondrion. This organelle... Read More

Common lymphoid progenitor cell

Definition noun The progenitor cell in the lymphoid lineage capable of differentiating into lymphocyte and lymphoid... Read More

CFU-GEMM

Definition noun A stem cell capable of differentiating into granulocyte, erythrocyte, monocyte, and... Read More

Analogous

In evolutionary biology, the meaning of analogous is “having similarities in functions but different evolutionary... Read More

Race

Definition noun (1) A group or population of humans categorized on the basis of various sets of heritable characteristics... 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

Analogous structures

Analogous Structures Definition In evolutionary biology, analogous structures are defined as biological structures having... Read More

Pedigree

Definition noun (1) An ancestral line or chart depicting the lineage or descent of an individual. (2) (genetics) A diagram... Read More

Invasion

Invasion a term that should be used with caution, although most cell biologists would follow Abercrombie in meaning the... Read More

Birth

Birth 1. The act or fact of coming into life, or of being born; generally applied to human beings; as, the birth of a... Read More

New Zealand’s Unique Fauna

By: Maria Victoria Gonzaga In the previous lesson, we learned about the high biodiversity of New Zealand and how... Read More

Charophyta

Charophyta is a taxonomic group (a phylum) comprised of green algae that live predominantly in freshwater habitats. Members... Read More

Polyphyletic

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

Homoplasy

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

Regional continuity model

Definition noun A scientific model supported by Milford Wolpoff in which it holds that the modern humans came from a single,... Read More

Memory T cell

Definition noun, plural: memory T cells A long-lived T cell that bears receptors for an antigen during its encounter with a... Read More

Totipotent

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

Crossbreeding

Definition noun The act or process of producing offspring by mating purebred individuals of different breeds or... Read More

Granulopoiesis

Definition noun The hematopoiesis of granulocytes Supplement Hematopoiesis is the process of forming new blood cellular... Read More

Speciation event

Definition noun, plural: speciation events A moment in which the evolutional lineage splits, starting history of a new... Read More

The Fungi

The Fungi What are the Fungi? The Fungi are the great saprophytes, the master recyclers.  They are the black rot, the... Read More

Granulocyte

Definition noun, plural: granulocytes A leukocyte characterized by the presence of numerous staining granules in the... Read More

Water mold

'''water molds parasitic or saprobic organisms living chiefly in fresh water or moist soil. multinucleated organisms that... Read More

Line Of Descent

The descendants of one individual; ''his entire lineage has been... Read More

Human

Human Definition A human is a bipedal hominin characterized by having a higher and vertical forehead compared with earlier... Read More

Nations

nation 1. (Science: ethnology) A part, or division, of the people of the earth, distinguished from the rest by common... Read More

Origin

Definition noun, plural: origins (1) The birth, existence, or beginning; starting point. (2) The cause; that which causes... Read More

Breed

Breed 1. A race or variety of men or other animals (or of plants), perpetuating its special or distinctive characteristics... Read More

Consanguinity

Definition noun, plural: consanguinities A relationship that arises from having a common ancestor;... Read More

Biological

Definition adjective (1) Of or pertaining to biology: the scientific study of life (or living things). (2) Of or relating to... Read More

Purebred

Definition noun, plural: purebreds An animal that is of pure breed, i.e. whose ancestors on both sides have been members of... Read More

Genotype

Genotype and Phenotype The contrasting terms genotype and phenotype are used to define the characteristics or traits of an... Read More

Phylogeny

Phylogeny refers to the evolutionary history of the development of a species or of a taxonomic group of organisms. The... Read More

Plasmablast

Definition noun, plural: plasmablasts An antibody-producing stem cell that could give rise to another of its kind or... Read More

Convergent evolution

Convergent evolution definition What is convergent evolution? Convergent evolution is a concept in evolutionary biology... Read More

Progenitor cell

progenitor cell (Science: cell biology) In development a parent cell that gives rise to a distinct cell lineage by a series... Read More

Mitochondrion

Mitochondrion Definition What are mitochondria? The term “mitochondrion” comes from the two words of the Greek... Read More

Theory of Neuroscience

Nezih OKTAR Journal of Neurological Sciences (Turkish) 2006, Volume 23, Number 3, Page(s) 155-158. An Open Access... Read More