true in Biological Dictionary

True-breeding

... A true breeding organism, sometimes also called a ... subsequent generations when bred with another true breeding organism for the same traits. In other words, to "breed true " means that two organisms with a ...

Glottis

... glottis the vocal apparatus of the larynx; the true vocal folds and the space between them where the ... online English dictionary and encyclopedia. ... true glottis . vocal organ. More results ... The ... glottis mean? ... 1 also called rima glottidis, true glottis . ... glottis stenosis ... ...

Disjunction

... is a logical operator that results in true whenever one or more of its operands are true. E.g. in this context, "A or B" is true if A ... The logical operation exclusive ... on two operands that results in a value of true if exactly one of the operands has a value of ...

Lumen

... Center: "An Esoteric Quest for Inner America" ... Lumen Verum means true light - the true light of the Catholic faith. ... Lumen Verum takes as its inspiration ...

Liverworts

... into the short-lived, small and ... The liverworts are the simplest true plants. This article outlines their means of reproduction. ... Liverworts are the simplest true plants and in order to ... ... to backyard liverworts ... ...

Lichens

... fungus called the ' ... ... like appearance of lichens hides their true ... Some lichens are formed of three ... life habit has allowed lichens ... in Costa Rica ... The plant-like appearance of lichens hides their true identity. ... Naturalists group lichens according to their external ...

Vestigial organ

... supposedly something that ... ... organs in claimed evolutionary ancestors.a They were called vestigial organs . ... c Indeed, the absence of true vestigial organs implies evolution never happened. ... Vestigial organs ( organs inherited from ancient ancestors, but no longer ... ...

Variation

... Magnetic variation , difference between magnetic north and true north, ... Variation (music), formal technique where material is altered during repetition ... In music, variation is a formal technique ...

Transformation

... (DNA). transformation n. The act or an instance of transforming . The state of being transformed . ... That bacterial transformation is true genetic transmission on a ... affine transformation ( ə′fīn ′tranzfər′māshən ) ( mathematics ) A function on a linear space to itself, which is ...

Tracheids

... +; sieve tubes eunucleate, with a ... vessel elements in root with scalariform and/or simple perforations; tracheids ... Dipsacales: true tracheids +; nodes 3:3; buds with scales; nectaries as ... Cabombaceae + Nymphaeaceae: stem rhizomatous; tracheids with meshwork of coarse ......

Thallus

... Day, and word games. Information about thallus in the free online English dictionary and encyclopedia. ... thallus - a plant body without true stems or roots or leaves or vascular system; ... Compare Cheap Prices for Thallus at NexTag.com. Find Great Bargains on Sporting Goods, Toys, ...

Telson

... The telson is the last division of the body of a crustacean. It is not considered a true segment because it does not arise in the embryo from teloblast areas as do real segments. It never carries any appendages, but a forked ...

Syngamy

... than themselves when syngamy results in recessive homozygotes. ... ... anatomy and sex lives (they don't have syngamy or meiosis or even true mitosis) ... Without water, algal syngamy is impossible, and gametes and embryos have no ... ...

Symbiogenesis

... coatings upon desert and seaside stones caused by ... This phenomenon, known as symbiogenesis , is described in the book entitled ... It's true that symbiogenesis is responsible for some of the main eukaryotic ... Retrieved from "http://en.wikipedia.org /wiki/Talk: Symbiogenesis " ... ...

Speciation

... was the ultimate ... has dominated speciation theory. ... Sympatric speciation --that is a very good example of Ernst's ... This is called true speciation or cladogenesis. ... This type of speciation occurs when a subpopulation that occupies the same niche ... Peripatric speciation ...

Somatic cells

... ... Developed by Baylor College of Medicine, BioEd Online provides up-to-date ... Somatic Cell Nuclear Transfer (SCNT): Dolly â€" The First true Clone (1997) ... Definition of somatic cell from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, ...

Slime molds

... Life's encyclopedia page about the biology, natural history, ecology, identification and distribution of Amoebozoa: Eumycetozoa - Slime molds , true slime ... Slime molds can refer to several groups of different and controversial classifications. ... Both plasmodial and cellular slime ...

Sinus venosus

... sinus venosus and the primitive atrium, the sinoatrial ... Britannica online encyclopedia article on sinus venosus (anatomy), ... the true vertebrate. Its circulatory pattern differs from that of most invertebrates as the ... Definition of sinus venosus in the Online Dictionary. ...

Sense

... are two different aspects of ... Online shopping offering clothing, footwear, and accessories for men and women from designers such as Diesel, true Religion, and Juicy Couture 5. The Deeper Issues Involved in the Idea of Sense -Data. a. The Underlying Tensions in the Idea. b. The Class of ...

Secondary growth

... Secondary growth is a feature of all gymnosperms and many dicots. Monocots and the seedless vascular plants lack secondary growth from a true vascular cambium. ... secondary growth ... secondary growth - Type of growth characterized by an increase in the thickness ... News ...

Scientific method

... scientific method remain such a mystery to so many people? ... Generally, in the scientific method , if a particular hypothesis/premise is true ... the steps in the Scientific Method . Get the Corel Presentations. Show ... Understanding and using the scientific method for your ...

Sarcolemma

... The sarcolemma is the cell membrane of a muscle cell . It consists of a true cell membrane, called the plasma membrane, and an outer coat made up of a thin layer of polysaccharide material that contains numerous thin ...

Reciprocal cross

... reciprocal cross is a breeding experiment designed to test the role of parental sex on a given inheritance pattern . All parent organisms must be true breeding to properly carry out such an experiment. In one cross , a male expressing the trait of ... Reciprocal (grammar), a ...

Protozoa

... images and multimedia resources Protozoa . Proudhon, ... The name Protozoa was coined as far back as 1820 as an equivalent ... Besides the true Protozoa , which, ex hypothesi, are organisms of ... Information about the Kingdom Protozoa including photos, maps, and text. ... Protozoa ...

Prostate gland

... tube that carries urine from the bladder ... ... the Prostate Gland . 1. Q: How can a person tell if the prostate gland is ... It is true that if the prostate gland were removed and carefully examined under ... The normal prostate gland is approximately 1½ inches long and ...

Proprioception

... it works. ... Proprioception metaphorically is called the "sixth sense," extending the ... Increase your biological literacy: learn about the true sixth sense, proprioception ... Without proprioception , you couldn't stand up. ... Proprioception has been considered, within neuroscience, ...

Post-meiotic segregation

... in a post meiotic segregation (PMS) event. ... Segregation distorters that are present in sexual chromosomes (as the X ... is termed true meiotic drive, as it does not rely on a post - meiotic mechanism. ... PMS2 ( post meiotic segregation increased 2) is a DNA mismatch ...

Polyprotein

... ... PEV1 polyprotein contains RNA-dependent RNA polymerase-like and helicase-like ... The Gag polyprotein for complex retroviruses, as is true for simple retroviruses, ... This polyprotein then binds to the encapsidation signal on that same viral RNA, ... The IRES allows direct ...

Phylogenetic tree

... trees are the main object of publication ... This article directly addresses the scientific evidences ... A method for determining the true phylogenetic tree : Cladistics. Of all clean birds ye shall eat. ... ... of the maximum topological similarity phylogenetic trees ...

Phycology

... Most algae are eukaryotic, photosynthetic organisms that live in a wet environment. They are distinguished from the higher plants by a lack of true roots, stems or leaves. Many species are single-celled ... Phycology (or algology), a part of botany, is the study of algae. Algae are ...

Origin

... dictionary and encyclopedia. origin of, ... of mixed French and Scottish origin " (Charlotte Brontë) ... Origin (comics) Origin : The true Story of Wolverine Origin #1 Cover Publication information Publisher Marvel Comics Schedule Monthly Format Limited Origin (software) Origin ...

Objective

... objective is broader in scope than a ... Objectives are the most basic planning tools underlying all planning and strategic activities. ... His true objective was the provision of a full, accurate, legible script for our ... (grammar) The objective case; a noun or pronoun in that case. ... ...

Nonvascular plants

... AND VASCULAR PLANTS . AG 512 - D ... importance of nonvascular plants . ... I. Nonvascular plants --Primitive land plants that lack true roots, ... ... of Plantae: Bryophyta - Bryophytes, Mosses, Hornworts, Nonvascular plants ... All plants reproduce through alternating ...

Mammals

... species that looked like mammals , and ... Mammals (formally Mammalia) are a class of vertebrate animals whose name is ... The first true mammals appeared in the Jurassic period. ... Get accurate animal information in an easy-to-read style from the San Diego Zoo's Animal Bytes. ...

Linkage

... Linkage Distances ... Most linkage programs on the market today force you to use proprietary macros, and work ... will be able to perform true probabilistic record linkage without ... Information about linkage in the free online English dictionary and encyclopedia. ... gene linkage ...

Limb

... cancer research advances, continuing medical education, ... LIMB Music Products & Publishing (LMP) A day in the life of the world's only true bionic hand - iLIMB by Touch Bionics.Video produced by: DeLa Creative (www.delacreative.com) ... Sign In or Sign Up now! ... The Limb Length ...

Immune system

... about bolstering the immune system by Dr. John F. Maras, the original founder ... a properly functioning immune system can only attain true ... ...

Hypothesis

... of ... For example, when testing hypothesis about the effect of a treatment on (say) a ... When used, the null hypothesis is presumed true until statistical evidence, in ... Main article: Hypothesis testing ... A null hypothesis would be that the ... HYPOTHESIS TESTING ... The ...

Homozygous

... and if ... An explanation about the homozygous blood test for the tobiano gene in horses and the black red test ... can produce true breeding ( homozygous ) tobiano horses. ... Homozygous - Definition of Homozygous at Dictionary.com a free online dictionary ... homozygous ...

Gyrase

... regulatory ... DNA gyrase introduces negative supercoiling into circular DNA by catalyzing the ... By representing the gyrase inhibition as a true pleiotropic phenomenon, we were ... These cellular processes are dependent on the supercoiling activity of gyrase . ... Reverse gyrase is a ...