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One in Biological Dictionary

Zoology

...glomeration of folklore, ... Zoology | World of Biology. Zoology summary with 2 pages of encyclopedia entries, research ... Zoology , which is one of two main branches of biology, is the ... Zoology summary with 15 pages of encyclopedia entries, essays, summaries, research information, and m...

Zygote

... single source. ... meaning that they develop from one zygote that splits and forms two embryos. ... ...MP3s, and music downloads at Rhapsody. Shop for one Vote Zygote and Music at Shop.com. Release Date ...e Music|New Age|One Vote Zygote *|Daxe|Mishambra one Vote Zygote Music ...

Zona pellucida

...ped mammalian ovum. ... Zona pellucida domain proteins" ... zona pellucida thick membrane around the mammalian ovum; can be penetrated by one sperm in the fertilization process; usually remains around the The zona pellucida is the spherical glycoprotein shell that sur ... caus...

Z-DNA

... Z - DNA is one of the many possible double helical structures of ... in a zig-zag pattern . Z - DNA is thought to be one of three... left-handed Z - DNA binding. • ..., is an alternate zig-zig-shaped form (or " ... one type reacts with both denatured DNA and Z-DNA . ....

Zinc finger

... Zinc fingers are small protein domains that can coordinate one or more zinc ions to help stabilize their folds. They can be classified i...le as a tab ... Typically three or more zinc fingers are combined in one polypeptide to make a ... What sequence in which DNA chain is contacted...

Yellow fever

... yellow fever killed more ... There was a time when yellow fever was one of the most feared diseases in America. ... Yellow fever is one of the most recognized and historically important viral infections. In the ...

Yolk

... the developing embryo. The egg yolk is suspended in the egg white by one or two spiral bands of tissue called the chalazae. Prior to fertilization...g below to see its connections and related words. The noun egg yolk has one meaning: Meaning #1 : the yellow spherical yolk n. The yellow, usually...

Y chromosome

...opedia entries, essays, summaries, research information, and more. ... Indian Mtdna, y Chromosome Genetic Data, and ... The Y chromosome is one of the two sex chromosomes in humans and most other mammals. ... In humans, the Y chromosome spans 23 million base pairs (the building ... ...

X-ray diffraction

... as ... The most widespread use of x-ray powder diffraction , and the one we focus on here, is for the ... For those who want to delve into the physi... and ... X-Ray Diffraction ... Powder X-ray Diffraction (XRD) is one of the primary ... Table of X-Ray Diffraction Values In the Mineralogy ...

Xylem

... In vascular plants, xylem is one of the two types of transport tissue, phloem bei...ls; woody tissue In vascular plants, xylem is one of the two types of transport tissue; phloem is ...decorative easels for home and... s, xylem is one of the two types of transport tissue, phloem. Phlo...

Xenopus

...ea pig, Human, Rabbit, Rat, Sheep, Snake and Xenopus ... ... public consortium of Xenopus . researchers, Affymetrix array ... Xenopus laevis is one of the few species of frogs. that can be induced to lay eggs on command, ... GeneChip® <i> Xenopus tropicalis</i> ... Services > ...

X chromosome

...verview. Mapping Data. Blast Search. Team. Website ... The human X chromosome has a unique biology that was shaped ... X Chromosome ... one X chromosome gives putative maleness. ... X chromosome . Y chromosome , for more information about origins of the XY sex-determination ... ...

Voluntary muscle

... Skeletal muscle is a form of striated muscle tissue existing under control of the somatic nervous system. It is one of three major muscle types, the others being cardiac and smooth muscle . As its name suggests, skeletal... These muscles are not as free as t...

Walking legs

...side from legs which is the essence of walking . ... ... earliest apelike ancestors started walking on two legs because it required less ... one expended about the same energy walking on two legs as on four. ... how the leg of a freely walking animal is affected by such. disturbanc...

VNTR

... VNTR stands for "variable number of tandem repeats" ... Since for any one VNTR locus, a number of different alleles may exist, each with ... If t... By using buoyant density gradient centrifugation, DNA fragments with ... one type of minisatellites is called variable number of tandem repeats ( VNTR...

Virulence

...nce factors that make the bacterium responsible for the ... Other hypotheses propose that the virulence of microparasites is not directly ... At one time, virulence was almost universally considered an artifact of recent ... Researchers at Duke University Medical Center have identified a previ...

Viability

.... Analysis of cell viability in culture is an important means of evaluating in ... Fluorescence assays for cell viability measurement are one of the most common ... ...

Ventricle

...within a body or organ, especially: The chamber on the left side of the heart that receives arterial blood Complex heart defects that result in one of the heart's pumping chambers ( ventricles ) being underdeveloped are called single- ventricle defects. Each of these ... In transposition of ...

Vector

...ipe and cigarette lighters, and other smoking ... Vector Institute offers application oriented training in Embedded Systems, DSP, ... VECTOR is one of the best, embedded systems training institutes in India. ... ...

Vectors

...d") by numbers, called scalars in this context. Scalars are often taken to be real... ... operations can be performed with and upon vectors . one such operation is the addition of vectors . ... Observe the following summations of two force vectors : ... Examples of vector quantities which...

Vascular system

... body to help fight diseases and help stabilize body temperature and pH to... Vascular tissue is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the xylem and phloem. These two tissues transport fluid and...

Vascular cambium

...lar cambium and the cork cambium . They produce secondary tissues from... Vascular tissue is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the xylem and phloem. These two tissues transport fluid and...

Vascular bundles

...sent in a vascular bundle, which in addition will include supporting and... Vascular tissue is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the xylem and phloem. These two tissues transport fluid and...

Vas deferens

...medical definitions ... The vas deferens is a coiled duct that conveys sperm from the epididymis to the ... A duplicate vas deferens on one or both sides can be a confounding cause of ... Vas Deferens cut twice or Re-canalization? Wife pregnant after vasectomy ... How the vas def...

Vascular bundle

...sent in a vascular bundle , which in addition will include supporting and... Vascular tissue is a complex conducting tissue, formed of more than one cell type, found in vascular plants. The primary components of vascular tissue are the xylem and phloem. These two tissues transport fluid and...

Vagina

...tures, anatomy, functions, sexual health and hygiene, and the vagina in popular culture. Includes an A-Z index of issues and theories regarding one woman's womanhood. Dedicated to understanding the clitoris, and female sexuality as a whole. Explains the vulva, clitoris, hymen, and other part...

Vacuoles

...e and support to cells, ... Many smaller vacuoles are found in expanding plant cells and in the tips of ... These vacuoles can be less than one micrometer in diameter. ... Information about Vacuoles in the free online English dictionary and encyclopedia. ... Vacuoles are found in the c...

Vacuole

...ctionary.com a free online dictionary with ... Vacuoles are found in the cells of plants, protists, and some primitive animals. ... ... contain one or several vacuoles , that may have different functions from each other. Vacuoles have a diverse array ... GO:0005773 : vacuole [1444 gene prod...

Uropod

... Decapod anatomy. From Wikipedia, the free encyclopedia (Redirected from Uropod ) ... Each segment may possess one pair of appendages, although in various groups ... Aspects of the topic uropod are discussed in the following places at Britannica. Assorted Refe...

Urinary bladder

...musculomembranous sac ... Urinary bladder (or bladder ) cancer is one ... also called urinary schistosomiasis, is the one related to bladder cancer. ... Urinary Bladder Cancer Chapter 11 ... ...

Urethra

...5 Things You Need to Know About Treating ... Urethra . Function and Location. The urethra is the tube through which urine leaves the body. ... one end of the urethra is connected to the bladder. The other ... Learn more about urethra . Also related are Urethra , Prostatic urethra , ... In...

Urea cycle

...er or urea cycle defect is a genetic disorder caused by a deficiency of one of the enzymes in the urea cycle which is responsible for removing ammo...ic ... whether your baby is affected by a urea . cycle disorder by doing one or more of the ... Feature article describes urea cycle disorders, t...

Uracil

...structurally analogous to thymine in molecules of DNA. ... Uracil is one of the five main nucleobases found in the nucleic acids DNA and RNA. ... ... HighBeam.com. Free Trial, Credit Card Required. Uracil . Definition(s) one of the four bases in RNA. The others are adenine, guanine, and cytosine. ...

Unicellular

...d of the Day, and word games. unicellular adj. Having or consisting of one cell; one-celled: unicellular organisms. ... How are unicellular protis... about unicellular in the free online English ... Having or consisting of one cell; one-celled: unicellular organisms. ... Development can be seen e...

Ulna

...lossary with medical definitions ... ( The smaller one is the radius). The ulna is on the same side of ..., 216).—The ulna is ossified from three centers: one each for the body, the ... The coronoid process..., 216).—The ulna is ossified from three centers: one each for the body, the ... ...

Ubiquitin

...t is ubiquitously expressed in eukaryotes. Ubiquitination refers to the post-translational modification of a protein by the covalent attachment of one or more... ubiquitin ( yü′bikwə′tin ) ( biochemistry ) A small, 76-amino-acid, highly conserved protein present in the cytoplasm and nucle...

Tunica

... to nine casino resorts. The use of the name " Tunica " by the resorts, despite the fact that since 1995 ... Stay & Play at Horseshoe Tunica , one of Harrah's 3 hotels & casinos in Tunica . With Harrah's low rate guarantee, you can afford Tunica's hotels, casinos, shows & more. - - ...

Tumor suppressor

...suppressor gene, or antioncogene, is a gene that protects a cell from one step on the path to cancer. When this gene is mutated to cause a loss or ..... A single defective tumor suppressor will still leave the cell with one ... Loss of Tumor Suppressor Gene Triggers Colon Cancer (09.03.98) ....

Tubulin

... Tubulin is one of several members of a small family of globular proteins. The most commo... that is the basic structural constituent of microtubules. ... Tubulin is one of several members of a small family of globular proteins. ... tubuli...

Tube feet

... vascular system of the echinoderm phylum which also includes sea urchins, sand dollars and sea cucumbers and many other sea... tube foot n. one of the numerous external, fluid-filled muscular tubes of echinoderms, such as the starfish or sea urchin, serving as organs of This site contai...
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