true

Unicellular

...e together in a somewhat coordinated group. Unlike true multicellular organ isms, the individual cells retain their separate identities, and usually, their own membranes and cell wall s. Full article >>> Cilia are hair-like structures that can beat in synchrony causing the movement of...

Thallus

...young twig] A simple plant or algal body without true roots , leaves, or stems. Full article >>> thallus The complete body of a seaweed. thecodonts A large assemblage of Triassic archosaurian diapsids of the order Thecodontia and character ized by having teeth set in sockets. Full ...

Tectonics

...h America. Full article >>> This is true of such established theories as evolution , special and general relativity, quantum mechanics (with minimal interpretation), plate tectonics , etc. Other studies ... Full article >>> List of topics related to pi List of plate tecton...

S1 nuclease

...g , unlike primer extension , does not locate the true 5' end of the RNA . Full article >>> In endonuclease , it cleaves at internal sites in the substrate molecule . Exonuclease progressively cleaves from the end of the substrate molecule . In ribonuclease ( RNase ), the subs...

Prokaryote

...62; Prokaryote . A bacteria l cell lacking a true nucleus ; its DNA is usually in one long str...an isms that do not have their DNA enclosed in a true nucleus and lack many other organelles such as mitochondria and chloroplasts (pro = before ...

Probability

...d to his choice to start his experiments only with true breed ing plant s. Full article >>> The Poisson equation describes the probability distribution of random events -- for example, the probability that random mutation s in a cell will affect a particular gene , ... Full artic...

Primer extension

...g , unlike primer extension , does not locate the true 5' end of the RNA . Full article >>>...

Polycistronic

...g , unlike primer extension , does not locate the true 5' end of the RNA . Full article >>> : A DNA segment coding for a specific polypeptide , and includes its own start and stop codon s. When an m RNA encodes two or more proteins , it is called polycistronic . Clade ... Fu...

Phylogeny

...he patterns of lineage branching produced by the true evolution ary history of the organ isms being considered. plesiomorphy -- A primitive character state for the taxa under consideration. Full article >>> Phylogeny The class ification of organ isms according to evolution ary c...

Package

... , until the seedling is able to produce its first true leaves and begin photosynthesis ; ... Full article >>> Cosmid s can be package d in lambda phage particles for infection into Escherichia coli ; this permits cloning of larger DNA fragments (up to 45 kb) than can be introduced...

Organelles

...#62;>> Prokaryotic cells do not have a true nucleus . They have few organelles , and have no membrane-bound organelles . In cyanobacteria , the cell membrane folds inward in a number of places allowing for the attachment of enzymes . Full article >>> The genetic material...

Organelle

...#62;>> Prokaryotic cells do not have a true nucleus . They have few organelle s , and have no membrane-bound organelle s . In cyanobacteria , the cell membrane folds inward in a number of places allowing for the attachment of enzymes . Full article >>> Definition: All o...

Nucleus

...62; Eukaryote organ isms whose cells have a true nucleus (eu = good well true; karyon = nut kernel nucleus ) Euryhaline having a wide range of salt concentration tolerance (eury = broad wide; halin hali halo = salt the sea) ... Full article >>> 4642. Principal sensory nucleus ...

Mycelium

mycelium mass of filamentous hyphae of true (higher) fungi Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby ... Full article >>> Mycelium , Mycelia (pl.): A mass of interwoven filamentous 'threads' that make up the vegetative part of...

Morphology

... grass-like morphology ; a growthform typified by true grasses (Graminae) and by sedges (Cyperacaeae). Grass: a member of the Graminae family of flower ing plant s. Full article >>> Cyanobacteria Morphology and Introduction to the Archaea Life's extremists. . . These University of ...

Monocistronic

...g , unlike primer extension , does not locate the true 5' end of the RNA . Full article >>>...

Minerals

...like modified leaf which protects the developing true leaves. Full article >>> Geology the study of rocks and minerals (geo = earth; -logy = to study) Glaucous a term used to describe plant s which are green with a grayish or whitish "bloom" on them (glauco = bluish-green silvery gr...

Kingdom

...ull article >>> The opposite is also true (ref1, ref2, ref3). There are even a few cases where one sequence segment of a protein with an origin in one kingdom is attached to a segment with an origin in another kingdom (ref). Full article >>> Phylum , Phyla (...

Hemizygous

...yo nic development of which differs from that of a true coelom but that includes a vestige of a true coelom . Full article >>> Hemizygous : As in any X-linked trait in males, absenc...

Genotype

...erent from that of F1 because the P1 plant s were true breed ing and the F1 plant s were not. The genetic makeup of an individual is referred to as its genotype . Full article >>> Genotype The term proposed by Johannsen (1909) for the hereditary constitution of an individual, or of ...

Flower

... plant s Plant s that have flower s, seeds, and true leaves, stems, and roots . Full article >>> flower bud. A bud in which flower parts are contained. frass. Solid fecal material produced by insects. fruiting bodies. In fungi , reproductive structures containing spore s. Full ar...

Expressed gene

...he proteome . Full article >>> eu- true euchromatin Chromatin which is in an uncondensed form, is more accessible, and contains the majority of actively expressed gene s. See also heterochromatin . Full article >>>...

Eukaryote

... ism having eukaryotic cells , i.e., those with a true nucleus Source: Jenkins, John B. 1990. Human ...62; Eukaryote organ isms whose cells have a true nucleus (eu = good well true; karyon = nut kernel nucleus ) Euryhaline having a wide range of sa...

Euchromatin

... Expression . Full article >>> eu- true euchromatin Chromatin which is in an uncondensed form, is more accessible, and contains the majority of actively expressed gene s. See also heterochromatin . Full article >>>...

Eubacteria

...ria The subunit of the Monera that includes the true bacteria such as E. coli. One of the three major groups of prokaryotes in the Kingdom Monera . The eubacteria have cell wall s containing peptidoglycan. Full article >>> Bacteria - Eubacteria Prokaryotes (from Old Greek...

Endoskeleton

...h exoskeleton . Full article >>> A true endoskeleton (that is, protective tissue derived from mesoderm ) is also present in Echinoderms. Porifera (sponges) possess simple endoskeleton s that consist of calcareous or siliceous spicules and a spongin fiber network. Full article >&...

Ectoderm

...er basic layer of tissue in those animals with true tissue s. In vertebrates , for instance, the embryo nic ectoderm differentiates into the skin and also the nervous system . Full article >>> ectoderm Outer layer of cells of an early embryo ( gastrula stage); one of the ge...

Double stranded

... (CAP) binding site 5'GTGAGTTAGCTCAC3') are not true palindromes but in double stranded form ... Full article >>>...

Cuticle

...loit more inland environment s. Still mosses lack true vascular tissue to trans port fluids and nutrients. Full article >>>...

Cotyledons

...d crop plant s. Full article >>> true leaf . Any leaf produced after the cotyledons . tuber. An enlarged, fleshy, underground stem with buds capable of producing new plant s. tuberization. The formation of tubers at the ends of stolon s; tuber initiation. Full article >>...

Colon

...e together in a somewhat coordinated group. Unlike true multicellular organ isms, the individual cells retain their separate identities, and usually, their own membranes and cell wall s. Full article >>> Colon y A visible group of cells arising from a single cell plated on soli...

Coelom

coelom (celom) a hollow, true body cavity containing organ s, and lined with mesoderm tissue Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby ... Full article >>> Coelom [Gr. koilomatos - a hollow]. A body cavity li...

Cells

...62; Eukaryote organ isms whose cells have a true nucleus (eu = good well true; karyon = nut kernel nucleus ) Euryhaline having a wide range of salt concentration tolerance (eury = broad wide; halin hali halo = salt the sea) ... Full article >>> Definition: Radial microtubule arr...

Carapace

...ound s or silica) and chitin ous exoskelotons. A true endoskeleton (that is, protective tissue derived from mesoderm ) is also present in Echinoderms. Full article >>> Arachnids have a cephalothorax covered with a carapace -like shield. The abdomen may be segment ed or unsegmen...

Blastocoel

...en identified but this may be less than 10% of the true number. Most are free-living; found in soil where they are important decomposers . Full article >>> embryo produced by spiral cleavage , character ized by the absence of a blastocoel ; formed by embryo s of annelid worms, turb...

Biomass

...productivity. In a grassland that's true. It's not true in all ecosystems . The relationships are complex, and it doesn't need to indicate greater stability. Full article >>> Biomass . The total dry weight of all organ isms in a particular sample, population , or area. Bioremediation ....

AP-1

... To illustrate the ability of RegSeq to identify true transcription factor binding site s we analyzed several AP-1 , NFAT and GATA-3 experimentally character ized binding site s in the 1 Mb well-annotated cytokine gene cluster (Hs5q31; Mm11). Full article >>> Frequently, extracell...

Animals

... Full article >>> Animals that are true carnivores A true carnivore is an animal that subsists primarily on a diet consisting only of meat. Full article ...

Adaptive radiation

...his new zone in many different ways, and it's very true that once a new group of animals has become established, ... Full article >>> adaptive radiation Evolution ary diversification that produces numerous ecologically disparate lineage s from a single ancestral one, especially when t...

Acoelomate

acoelomate without a hollow, true body cavity, or coelom . Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby ... Full article >>> acoelomate s Animals that do not have a coelom or body cavity; e.g., sponges and flatworms....