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cycle in Biological Dictionary

Urea cycle

The urea cycle is a cycle of biochemical reactions occurring in many animals that produces urea (NH2)2CO from ammonia (NH3). This cycle was the first metabolic cycle discovered . In mammals, the urea cycle takes place only in... An urea cycle disorder or urea cycle defect is ...

Lytic cycle

The lytic cycle is one of the two cycles of viral reproduction, the other being the lysogenic cycle . These cycles should not, however, be seen as separate, but rather as somewhat interchangeable. The lytic cycle is typically considered the main method of viral... Lysogeny, or the lysogenic...

Krebs cycle

The citric acid cycle — also known as the tricarboxylic acid cycle (TCA cycle ), the Krebs cycle , or more rarely, the Szent-Györgyi- Krebs cycle — is a series of enzyme-catalysed chemical reactions of central importance in all... Krebs cycle n. A series of enzymatic reactions in aer...

Citric acid cycle

The citric acid cycle — also known as the tricarboxylic acid cycle (TCA cycle ), the Krebs cycle , or more rarely, the Szent-Györgyi-Krebs cycle — is a series of enzyme-catalysed chemical reactions of central importance in all... In aerobic organisms, the citric acid cycle is a m...

Cell cycle

The cell cycle , or cell -division cycle , is the series of events that take place in a cell leading to its division and duplication (replication). In cells without a nucleus (prokaryotes), the cell cycle occurs via a process... cell cycle n. The series of events involving the...

Zygospore

...onas formed? ... zygospore a plant spore formed by two similar sexual cells ... the zygospore of chlamydomonas formed? What is The life cycle of these fungi include a zygospore ? ... Woleb os, evoba sa. ... Zygospore - Definition of Zygospore at Dictionary.com a free online dict...

Xanthophyll

...In diatoms and dinoflagellates the xanthophyll cycle consists of the pigment ... xanthophyll ( )...s with at least ... Cheng L 2003 Xanthophyll cycle pool size and composition in relation to the ... The xanthophyll cycle intermediates occur mainly in the light-harvesting...

Urea

... n. A water-soluble compound, CO(NH 2 ) 2 , that is the major nitrogenous end product of protein metabolism and is the chief nitrogenous urea cycle n. The sequence of chemical reactions that takes place in the liver and that results in ... 3 ATP + 2 H2O urea + Fumarate + 2 ADP + 4 Pi ... ...

Untranslated region

... start codon. ... analysis of the 5'- untranslated region of SPR of. patient's DNA. ... Key role of the 3' untranslated region in the cell cycle regulated expression of ... histone H2A genes: minor synergistic effect of the 5' untranslated region ... ... based predictions of seconda...

Trematode

..... majority of trematode diversity, are ... All trematodes are parasitic, and most adult trematodes parasitize vertebrates. ... Trematode Life cycle " ... Joint WHO/FAO Workshop on Foodborne Trematode Infections in Asia, which was held ... trematode eggs frequently cannot be detected in the ...

Transposable element

...us, the presence of the transposable element in the allele changes the ... Transposable Elements in Peas. McClintock. Break-bridge-fusion cycle due to Ac-Ds ... The Ac transposable element is 4563 bases long with two 11- base pair imperfect ... Definition of Transposable elemen...

Thylakoids

...lakoids have a membrane and contain lipids, proteins, and chlorophyll. The thylakoids are suspended in a fluid called the stroma. ... The Calvin cycle (dark reactions), photophosphorylation (light reactions) ... Thylakoids are permeable to Mg2+ and Cl so this is mostly a concentration effect ... ...

Taq polymerase

...be used with Takara's Ex Taq ™ Polymerase ? ... Britannica online encyclopedia article on taq polymerase (enzyme), ...replenished after every cycle because it is not stable at the high temperatures needed for ... Taq polymerase . From Molecular Biology Wiki. Jump to:navigation, search. Taq ...

Synaptonemal complex

...psis. ... ... synaptonemal complex formation. Definition. The cell cycle process whereby the synaptonemal ... GO:0007130 : synaptonemal complex assembly [33 gene products] ... ... cell physiology > cell cycle > cell division > meiosis > synaptonemal complex ... No ...

Stalk

...ee derivatives ... Sclerotinia Diseases of Sunflower, Sclerotinia Wilt, Sclerotinia Middle Stalk Rot, Sclerotinia Head Rot, The Pathogen, Disease cycle - Sclerotinia Wilt, Disease ... Bargain prices on Yucca Stalk , store variety for Yucca Stalk . Compare prices and buy online at Shopzilla. ...

Sporophyte

...ion of Generations, occurrence of two or more alternating forms in the life cycle of plants, algae, and ... of the sporophyte is that its ... See also ...with an incredibly small, ... Sporophyte – diploid stage in the life cycle of plants that produces haploid ... develops into a sporophyte . Inside ...

Sporangiophore

...orangiophore are discussed in the following places at Britannica. Assorted References feature of Equisetopsida ( in Equisetopsida (plant class): Life cycle ) ...reproductive shoots. In these species the strobilate branches appear first, and, after the spores are shed, the green vegetative shoots develop...

Slime molds

... found in or on such ... In plasmodial slime molds (myxomycetes), individual cells fuse such as to make ... While slime molds have a life cycle that resembles that of fungi, and once were ... Discover Life's encyclopedia page about the biology, natural history, ecology, identification and...

S phase

...t for synthesis phase , is a period in the cell cycle during interphase, between G1 phase and the G2 ...NA... S phase n. The phase of the mitotic cycle during which DNA synthesis occurs. ... During S .... Second, NBS cells exhibit defects in cell cycle control in S phase (Taalman et al. 1983) ... m...

Retrovirus

... of two identical plus sense RNA molecules. ... The term "retro" in retrovirus refers to this reversal of ... Popular description of the life cycle of retroviruses . ... HIV-2, the agents that cause AIDS, are retroviruses . ... A typical, "minimal" retrovirus consists of: ... A retrovirus ...

Red blood cells

...ile squeezing... Red blood cells are red only because they contain a protein chemical called ... out and eventually die. The average life cycle of a red blood cell is 120 days. ... Red blood cells are by far the most abundant cells in the blood . ... of red blood cells ...

Random mating

...nnica online encyclopedia article on random mating (genetics), Many species engage in alternatives to random mating as normal parts of their cycle of sexual ... Random , mating ,biological ,biology dictionary,biology terminology,biology terms,biology abbreviations ... Non- random mating ...

Programmed cell death

...ath . Understanding the fine ... unwanted cells by the process of programmed cell death , or apoptosis, in which ... Chapter 17 : THE CELL cycle AND PROGRAMMED CELL DEATH . Figure 17–14 ... 2) Programmed cell death is required to destroy cells that represent a threat to ... Gall...

Poikilothermic

...vertebrates and the invertebrates — that secure ... Ectotherms are "cold-blooded" or poikilothermic . ... about.png! What is ILCYM? Insect Life cycle Modeling is a software that helps define phenological models of poikilothermic organism (insects) based on temperature ... ... multitissue analys...

Pituitary gland

...to Managing Tumors of the Pituitary Gland Offer Patients Hope. by Ellen ... The pituitary gland also controls ovulation and the menstrual cycle in women. ... Working with hormones from the pituitary gland , testosterone also tells a guy's ... ...

Photophosphorylation

...tion and other additional information on Photophosphorylation from Biology-Online.org dictionary. ... B A. Photophosphorylation B. Calvin - Benson cycle ... ...

Photoautotroph

...age genomes: signature features and ecological ... photoautotroph , prochlorococcus. ... photoautotroph can fix CO. 2 ? (2 points) A. the Calvin cycle ... photoautotroph , generating both reducing power for carbon fixation (via the ... Green (from chlorophyll) fronds of a maidenhair fern: a ph...

Phosphorylation

...mitosis ... A shows mitotic vimentin phosphorylation at Ser55, Ser71, and Ser72, which were ... Our results identify phosphorylation by cell cycle dependent kinases as a major ... To illustrate how the phosphorylation sites could potentially regulate substrate ... T he objectives of the gr...

Permutation

...rent balls in 3 different rows can be ... The permutation of n objects taken all at a time is represented as. ... ... bijection, function, cycle, cycle notation, one-line notation for permutations ... This is version 7 of permutation , born on 2001-10-20, modified 2007-10-22. ... A permutation ...

Ovulation

... Ovulation is the process in the menstrual cycle by which a mature ovarian follicle ruptures and di...production. Ovulation also occurs in the estrous cycle of other female mammals, which differs in many fun... release of a mature egg ... Ovulation and the cycle Phases ... The phase after ovulation is called t...

Organelles

... Organelles . About the ... see and identify organelles , the specialised compartments inside ... The Cell and Its Organelles . Control of the Cell cycle ... Organelles are small structures within cells that perform dedicated functions. As the name implies, you can think of organelles as small ...

Nonvascular plants

...ter ... Nonvascular plants , like vertebrate amphibians, consequently tend to be ... Nonvascular plants spend the predominance of their life cycle in the haploid or ... The most primitive of the nonvascular plants are considered to be members of the ... The California Native Plant Soci...

NADPH

...actions as a strong ... NADPH ( ) n. The reduced form of NADP. [ NADP + H. ... You measure the amount of atp and nadph consumed by the calvin cycle in 1 hour ... 5α-cholesta-8,24-dien-3-one + NADPH + H+ = zymosterol + NADP ... acetate + NADPH = versiconol acetate + NADP+ , hydroxyversicolor...

Mitotic spindle

... radial array into a bipolar mitotic spindle that carries out ... mitotic spindle a vulnerable target for drugs that inter- fere with cell cycle progression. ... ... that have formed the mitotic spindle , the chormosomes are aligned in the center of the cell. ... and DNA in a mitotic s...

Mitosis

...QuickTime animation of the process. ... Cell Biology > Intro. to Cell cycle & Mitosis > Introduction ... Mitosis . Test ... of mitosis that...n preparation ... Mitosis - Wikipedia, the free encyclopedia ... The Cell cycle & Mitosis Tutorial ... Animated Science, Health, Technology, Math,...

Micronucleus

... nuclei, by whose reciprocal fusion a zygote nucleus is formed, which gives rise to the macronuclei and micronuclei of the individuals of the next cycle of fission. Thermo Scientific Cellomics products automate drug discovery through a unique, cell-based assay platform that ... in vitro micronucl...

Metaphase

... Metaphase , from the ancient Greek μετά (between) and φάσις (stage), is a stage of mitosis in the eukaryotic cell cycle in which condensed & highly coiled chromosomes, carrying genetic information, align in the middle of the cell before being separated into each o...

Menstruation

... humans and close evolutionary... The menstrual cycle is a recurring cycle of physiologic changes that occurs in reproductive...and more! ... About menstruation - The menstrual cycle - Problems with the...

Ligation

...allopian tubes are severed and sealed or "pinched shut", in order to prevent fertilization. Hormone production, libido, and the menstrual cycle can be affected by a tubal ligation . Tubal ligation - Overview, Tubal ligation (or "tying the tubes") is surgery to close a woman's fallopia...

Larva

... more. ... Larva refers to the stage in the life cycle of ... With a command from the Overmind, the L...n the span of an ... Information about the life cycle of the mosquito. ... Life cycle / Egg / Larva / Pupa / Adult ... On the fourth m...
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