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Genes in Biological Dictionary

Ribosomal DNA genes

Ribosomal DNA (rDNA) are sequences encoding ribosomal RNA. These sequences regulate amplification and transcription initiation and contain transcribed and nontranscribed spacer segments. The nucleolus consists of expanded chromosomal loops that carry transcriptional... Ribosomal RNA ...

Y chromosome

...lion base pairs (the building blocks of DNA) ... genes on the Y chromosome are among the estimated 20,000 to 25,000 total genes ... Y chromosome infertility is a conditi..., researchers say that there is a dramatic loss of genes from the human Y chromosome that could event...

X chromosome

...... The X chromosome carries a couple thousand genes but few, if any, of these have ... The X chr...lion base pairs (the building blocks of DNA) ... genes on the X chromosome are among the estimated 20,000 to 25,000 total genes ... X-chromosome or X chromosome ( ) n. The...

Vitelline membrane

...and no more bind. ... The European ... Drosophila vitelline membrane genes contain a 114 base pair ... melanogaster genes encoding vitelline membrane proteins. ... The European Bioinformatic...

Virulence

...s to the degree of pathogenicity ... Sensing Virulence ... Virulence genes are often involved in producing toxins ... Identifying and characterizing important virulence genes and determining their ... Definition of virulence from the Merriam-Web...

Urea cycle

.... The Urea Cycle . Urea is the chief nitrogenous waste of mammals. ... several inherited diseases of the urea cycle caused by mutations in genes ... Cincinnati Children's Hospital Medical Center offers information on Urea Cycle Disorder (UCD) ... A urea cycle disorder (UCD) is an inh...

Untranslated RNA

...3' untranslated RNA pseudoknots regulates translation. ... ... whose products are small RNA molecules apparently having major roles ... These genes produce untranslated RNA molecules that are processed into short (17 ... ... acid ( RNA ) is a ... RNA . 2.1 Untranslated Regions. 2.2 Anti-...

Unlinked

... RootsMagic ... I unlink the ... her ancestors as an unlinked , separate, small database within the ... Meiotic Recombination Between Unlinked genes Animation ... Loading... More Biology Animations. Meiotic Recombination Between Unlinked Genes. 2D Flash Animation ... When specimens are collect...

Tumor suppressor

...ewed below, a large number of tumor suppressor genes ... Thus far, about 30 tumor suppressor ... a ... ) ( cell and molecular biology ) A class of genes which, when mutated, predispose an individual to ...our source for information on Tumor Suppressor genes and Proteins. ... Search Tumor Suppressor ... ...

Tumor

... prevention, and treatment options. ... on the type and location of the tumor . ... Brain Tumor Community. Check out NBTS events or start. a ... genes Found to Play Cooperative Role in Brain Tumors ... Biomarkers in Brain Tumor Research ... Brain Tumor Awareness Day at the Oakland A's ... Th...

Tubulin

...genes: each encodes a distinct isoform. ... Maternally encoded ß1 tubulin is incorporated into zygotic mitotic spindles. ... The four ß- tubulin genes of Drosophila each encode a distinct isoform. ... The ß3- tubulin gene encodes a divergent isoform expressed in a complex developmental ... ... ...

Transport vesicle

...s in this pathway can be generated in vitro ... Isolated COP1-derived transport vesicles should constitute an ideal basis for ... ... of SEC genes govern transport vesicle formation and fusion early in ... The molecular control of transport vesicle fusion. New Biol. 1990 Jun;2(6):505–511....

Transposable element

... somatic tissues. ... P-elements are transposable elements that carry genes for transposase activity ... shown to consist of transposable eleme... References ... A transposable element can be used as probes to clone genes that are mutated by ... Transposable element sequences are abundant ...

Transgenic plant

... Transgenic plants possess a gene or genes that have been transferred from a different specie... that have been genetically modified by inserting genes directly into a single plant cell Transgenic plants possess a gene or genes that have been transferred from a ... 5 Transgeni...

Transgenic animals

...using genetic engineering techniques. These techniques, generally known as recombinant DNA... Transgenic animals , i.e., engineered to carry genes from other species, have the ... Some transgenic animals are produced for specific economic traits. ... Transgenic Animals The term ' trans...

Transgenic animal

...- BSRC Alexander Fleming. Transgenic Animal Models - Biomedcode ... A transgenic animal is one whose genome has been changed to carry genes from other species. ... The first successful transgenic animal was a mouse.6 A few ... Transgenic Animals The term ' transgenics ' refers t...

Transgenic

... Transgenic plants possess a gene or genes that have been transferred from a different specie...s that have been genetically modified by inserting genes directly into a single plant cell genetically...re crops which have been genetically modified with genes from ... Transgenic System, Transgenic Anima...

Transcription start site

...sites ... Here, we show that transcription start sites of equivalent genes do not always ... EST clustering identifies a high-quality set of altern...by RACE. ... Massive transcriptoional start site analysis of human genes in ... DBTSS: database of transcription start sites , progress report ...

Thalassemia

... Thalassemia (1) includes disorders affecting the alpha hemoglobin chain genes and ... Alpha Thalassemia ... With alpha thalassemia , the "failed" genes are ... Thalassemia — Comprehensive overview covers symptoms, causes t...

Tet resistance

...oderate resistance to macrolides (10), and tet genes coding for ribosomal ... resistance genes have been found in anaerobes (3, 18), only the te... general a greater diversity of tet resistance genes was detected in the high ... were tested by PCR fo...

Terminator region

...> terminator ... terminator regions of DNA. • Explain how transcribed RNA is modified ... terminator region of the. DNA. Initiation. • genes on the DNA begin with a ... A terminator probe vector was constructed by cloning the M. tuberculosis hsp60 ... Promoter Regions (Genetics...

TATA box

... The TATA box is a DNA sequence found in the promoter region of most genes in eukaryotes and Archaea. The TATA binding protein (TBP) is a transcription factor that binds specifically to a DNA sequence called the ...

T7 RNA Polymerase

...ase also requires a DNA... RNA polymerase is an enzyme that produces RNA . In cells, RNAP is needed for constructing RNA chains from DNA genes as templates, a process called transcription. RNA polymerase enzymes are essential to life and are found in... EPICENTRE develops and manufactu...

Synteny

...c ... synteny n. The condition of two or more genes being located on the same chromosome whether or ... Synteny refers to the occurrence of two or more genes on the same chromosome, ... A disrupted synteny refers to circumstances where a pair of genes are located on ... Synteny map. Human NCBI bu...

Syngamy

...ll division, the two daughter ... A. syngamy . B. DNA replication. C. cell growth, division and differentiation. A or B B or C A or C ... ... genes and (2) offspring result from syngamy or the fusion of two different gametes. ... fit than themselves when syngamy results in recessive homozy...

Suppressor

... test a suppressor design is to measure it ... tumor suppressor gene ( ¦tümər sə′presər jēn ) ( cell and molecular biology ) A class of genes which, when mutated, predispose an individual to Shop for Suppressor 60 Caps and Sports & Nutrition at Shop.com. Vitamins & Supplements|S...

Supergene

... A supergene is a group of neighbouring genes on a chromosome which are inherited together bec...ia supergene ( ) n. A group of closely linked genes occupying a large chromosomal segment and freque...supergene ... Tutorial on how to create custom genes with JGAP to make up a genetic algorithm. ... In b...

Suberin

...n ; a waxy substance which is water ... Very long chain aliphatic compounds occur in the suberin polymer and associated wax. Up to now only few genes involved in suberin biosynthesis have been identified. ... ...

Structural gene

...perator, a promoter, and one or more structural genes gene n. A hereditary unit consisting of a ...nce in living organisms. ... The structural genes and the respective regulatory sequences (promoter...er than ... Operon - a cluster of structural genes that are expressed as a group and their ... and p...

Start codon

... by an untranslated region ... Determining the accuracy of start codon prediction is more ... start codon predictions on Escherichia coli genes using ... start codon reveals that most of the ... Three features near the start codon influence leaky scanning. ... three closely related ...

Splicing factor

... (PTB-associated splicing factor ), Authors: Jean-Loup Huret. Published in: Atlas Genet Cytogenet Oncol Haematol. ... Fusion of splicing factor genes PSF and ... ...

Spermiogenesis

...bnormalities in spermiogenesis (Huang et al, ... During the second half of spermiogenesis , replacement of somatic histones by ... ... those genes that optimize spermatogenesis and spermiogenesis have been selected ... reported that defective spermiogenesis is associated with the ... ......

Spermatids

...s, and the overall. reduction was still far less severe than that ... get genes in round spermatids . We noted that mice lacking ... Moreover, the numb...cytes by injecting spermatozoa, spermatids and spermatocytes. ... ... genes encode proteins located in human late spermatids and in sperm tails...

Spermatogenesis

...hat creates sperm from initially ... The period of spermatogenesis following the completion of meiosis ... during spermatogenesis . Numerous genes are transcribed at one stage of spermatogenesis ; ... Spermatogenesis is the process of producing sperm with half the number of ... This part ...

Somite

... online English dictionary and encyclopedia. ... somite - one of a series of similar body segments into which some animals are ... It shows how genes trigger the formation of each region of the somite . ... One such assumption was that the somite differentiates all at one time, which we ... Th...

Somatic hypermutation

...ection. Rearrangements of the antigen receptor genes occur during ontogeny in B and T lymphocytes. ..... 5-101-0022 ... Somatic hypermutation of Ig genes is probably dependent on transcription of the .....ll ... Somatic hypermutation of immunoglobulin genes is linked to transcription initiation. ... S...

SnRNA

...RNA. ... Transcription of the mammalian snRNA genes is directed by two promotor elements: ... The U1 through U5 snRNA genes are transcribed by RNA polymerase II, but lack a...elect the gene to ... Structure of U2 snRNA genes of Arabidopsis thaliana and their expression in ...

Site-specific recombination

... Site - Specific ... of three site - specific recombination systems: the integration ... transposase, and the recombination of immunoglobulin genes during ... Escherichia coli Xer site - specific recombination acts to convert circular DNA ... ( B) Model of Xer site - specific recombinati...

Single-gene disorder

...disorder is an illness caused by abnormalities in genes or chromosomes. While some diseases, such as cance...-understood genetic disorders due ... Home > genes and the body > genes and disease > Background > Single gene d...

SiRNA

...y a variety of roles in biology. Most notably, siRNA ... RNA interference (RNAi) is a system within living cells that helps to control which genes are active and how active they are. Two types of small RNA molecules – microRNA (miRNA) and small interfering RNA ( siRNA ) – are central... At som...
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