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...vation of the genes on one of the X chromosomes , leading to mosaicism for functions coded by heterozygous X-linked genes (See dosage compensation and Barr body ). Full article >>> X chromosome The X chromosome is one of the two se x chromosome s in human s and other animals (th......root. Full article >>> porous plate leading to the water vascular system of certain echinoderms, such as starfish Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby What Topic Is Your BIOLOGY Paper On? Full article >>> tube feet -- E...vagina in female mammals , a tube leading from the uterus to the exterior; or a place wher... vagina : a muscular organ in female mammals leading from the cervix to the exterior. vascular bundles : arrangements of the xylem and phloem in ....... vagina : a muscular organ in female mammals leading from the cervix to the exterior. vascular bundles : arrangements of the xylem and phloem in vascular plants . Full article >>> Closterium genus of Desmids in Kingdom Protista ; Division Chlorophyta which bear a gypsum......— ... Full article >>> A duct leading from the kidney to the urinary bladder . urethra [Gk. from ourein, to urinate] ... Full article >>> A saclike outgrowth from the ventral surface of the posterior part of the embryo nic gut and membrane in reptiles, birds, and....... Full article >>> ureter A duct leading from the kidney to the urinary bladder . urethra A tube that releases urine from the body near the vagina in females or through the penis in males; also serves in males as the exit tube for the reproductive system. Full article >>&......on the top surface of the leaf . ureter A duct leading from the kidney to the urinary bladder . Full article >>> Upper epidermis . This is a single layer of cells containing few or no chloroplasts . The cells are quite trans parent and permit most of the light that strikes them t......ologous chromosomes to separate during meiosis , leading to one gamete with n + 1 chromosomes (see trisomy ) and another gamete with n _ 1 chromosomes . Full article >>> uniparental disomy , it may cause trisomy 21 (Down's syndrome) in the offspring . Human chromosome 2 is a ......s of the thorax and abdomen called spiracles leading to the tubular trachea l system. Air reaches internal tissue s via a network of branches from the trachea l system. Full article >>> When a bird inhales, air flows in through the trachea to the posterior air sacs, while air curr......s of the thorax and abdomen called spiracles leading to the tubular trachea l system. Air reaches internal tissue s via a network of branches from the trachea l system. Full article >>> Various other medical problems may include inflammation of the nasal sinuses, nasal polyp s, clubb......at it sometimes makes mistakes when copying DNA , leading to mutation s (errors) in the DNA sequence , since it lacks 3'-5' proofreading exonuclease activity. Full article >>> The polymerase is called Taq polymerase . It is call Taq because it comes from the organ ism Thermus aquaticu......V W X Y Z ... Full article >>> The leading strand is the DNA strand at the opposite side of the replication fork from the lagging strand . It goes from 3' to 5' (these numbers indicate the position of the molecule in respect to the carbon atoms it contains). Full article >&......s of the thorax and abdomen called spiracles leading to the tubular trachea l system. Air reaches internal tissue s via a network of branches from the trachea l system. Full article >>> They exchange gases through a trachea l system, with external openings called spiracles dividing......k of normal sexual development and testosterone, leading to infertility and adjustment problems if not detected and treated early. Full article >>>......sequencer . He is recognized as one of the world's leading scientists in molecular biotechnology and genomics . Full article >>> For the sense of " sequencing " used in electronic music, see the music sequencer article. Full article >>> American biochemist, developed high......lower or to another flower of the same plant , leading to self- fertilization . semen ... Full article >>> self-pollination Trans fer of pollen from stamen to stigma within the same plant . self-pollinating plant A plant that has its own pollen fall on its own stigma . Full......ell in which the first meiotic division begins, leading to the production of the first polar body and the secondary oocyte . Full article >>>......it. Replication fork moves from 3' to 5' of the leading strand . Unwinding is also necessary for DNA repair . Full article >>> Then, as the replication fork nears the end of the DNA , there is no longer enough template to continue forming Okazaki fragments . So the 5' end of each n......esult of a change in the fetal ad renal glands , leading to production of abnormally high levels of androgens . Full article >>> contra- against cyte- cell corticosteroids Steroid hormones formed by the ad renal cortex . cosmid A cloning vector , used for cloning large DNA fr...... the tissue s have insufficient oxygen , thereby leading to anemia. Full article >>> Hemoglobin is contained within red blood cells . When the oxygen concentration in the hemoglobin molecule s becomes low, the molecule s stick together forming long rods that distort the cell (pi...... geologically instantaneous events of speciation leading to phylogenetic branching; ... Full article >>> Punctuated Equilibrium The theory of punctuated equilibrium is an inference about the process of macroevolution from the pattern of species documented in the fossil record. F......ell in which the first meiotic division begins, leading to the production of the first polar body and the secondary oocyte . Full article >>> primary oocyte A diploid cell formed after a diploid oogonium underwent mitosis . The primary oocyte is arrested in Prophase of Meiosi...... Women have lower metabolic rates than men, likely leading to less oxidative damage to cells . Full article >>> Chemostats have been used for the last fifty years in the study of the physiology , population biology and ecology of bacteria and a variety of other small organ isms. ...... vector which carries a filamentous phage ori , leading to production of single- strand ed copies of the phagemid when the cell is infected with the relevant helper phage . Full article >>> cloning vector - intentionally designed artificial DNA construct used by molecular biologis......o the hoax as 'another instance of desire for fame leading a scholar into dishonesty' and boast that the unmasking of the deception is 'a tribute to the persistence and skill of modern research'. Persistence and skill indeed! ... Full article >>> However, if we interpret the persistence ......le that all these risk factors play in the process leading to such fatal complications is still quite unclear. Full article >>> pathogen ic : organ isms that cause human disease. PCR : polymerase chain re action ; a technique used to amplify a gene of interest. peptides : small pro......not continue into the ruffled b order area at the leading edge of the moving cell , it seems unlikely that they are concerned with the extended, forward phase of movement. Full article >>>...oral groove A depression leading to the mouth in some invertebrates . organ any multicellular structural or functional unit of an animal of plant , often composed of different tissue s that perform specific roles, such as the liver and leaf . Full article >>......ent]. The last stage of prophase 1 of meiosis , leading to metaphase of the first meiotic division . The chromosomes are at maximum condensation and the nuclear membrane breaks down. Full article >>> The last stage (Gk. telos, end) of mitosis , or of either division of meiosis , ...... nostril (nares) An external opening of the nose leading into the nasal cavity . Full article >>> The nostril s of bony fishes open only to the outside and are used for smelling. Some of the lobe-finned fishes developed internal openings to their nostril s. This made it possible to breath...... nostril (nares) An external opening of the nose leading into the nasal cavity . Full article >>>......ologous chromosomes to separate during meiosis , leading to one gamete with n + 1 chromosomes (see trisomy ) and another gamete with n _ 1 chromosomes . Full article >>> Advanced maternal age -- women over age 34 (age 35 at delivery) at increased risk for nondisjunction trisomy i...... soil or rocks by the downward movement of water. leading strand The new continuous complementary DNA strand synthesized along the template strand in the mandatory 5' to 3' direction. Full article >>> While movement of water and minerals through the xylem is driven by negative pr......ent]. The last stage of prophase 1 of meiosis , leading to metaphase of the first meiotic division . The chromosomes are at maximum condensation and the nuclear membrane breaks down. Full article >>> metaphase cells ) and non-proliferating ( interphase nuclei ) cells and is u...... Women have lower metabolic rates than men, likely leading to less oxidative damage to cells . Full article >>> (See RNA .) Metabolism . The biochemical processes that sustain a living cell or organ ism. Metallothionein. A protective protein that binds heavy metals, such as cadmium a......icle >>> in female mammals , a tube leading from the uterus to the exterior; or a place where reproductive cells are stored Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby What Topic Is Your BIOLOGY Paper On? Full article >>> eut...madreporite porous plate leading to the water vascular system of certain echinoderms, such as starfish Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby ... Full article >>> madreporite Sievelike structure that is the intak......ely 30 years. Full article >>> tube leading from trachea to lungs Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby What Topic Is Your BIOLOGY Paper On? Full article >>> In mammals the paired lungs are each supplied by a bronch...Lung Cancer Cancer of the lung is the leading cause of death from cancer in all males and in females between the ages of 15 and 64. Full article >>> The lung is the essential organ of respiration in air-breathing vertebrates . Its principal function is to trans port oxy......trans plants are done for chronic liver diseases leading to cirrhosis, such as chronic hepatitis C, alcoholism, autoimmune hepatitis, and many others. Full article >>> Liver worts have a thin, leathery body that grows flat on moist soil or, in some cases, the surface of still water. Moss......rs the release of cytochrome c from mitochondria leading to apoptosis . Full article >>> The core consists of two molecule s each of H2A, H2B, H3, and H4; around which the DNA is wound twice. The H1 histone is outside the core. Between 150-200 nucleotide pairs are associated with th......age The evolution ary lineage of vertebrates leading to modern reptiles, birds, and mammals . amniote Having an amnion ; as a noun, an animal that develops an amnion in embryo nic life, that is, reptiles, birds, and mammals . Full article >>> clone A lineage of genetically i...Leading strand DNA replication for the leading strand is continuous and towards the replication...ll article >>> Leading strand The leading strand is the DNA strand at the opposite side of the replication fork from the lagging stran...... opposite side of the replication fork from the leading strand . Full article >>> Lagging ...end is formed by anneal ing of the 3' end of the leading strand with the 5' end of the lagging strand . Double- strand breaks are formed during meiosis ......time would be passed on to succeeding generations, leading to inheritable change in species over time. Full article >>> Inheritance ABO Blood groups are inherited from both parents. The ABO blood type is controlled by a single gene with three alleles : i, A, and B. Full article >&#......k of normal sexual development and testosterone, leading to infertility and adjustment problems if not de...ked oviducts (often from untreated STDs) are the leading cause of infertility in females. Full article >>> While there were also exceptions ...... and NO release, with membrane hyperpolarization leading to increased system y+ activity in fetal endothelial cells . Full article >>>...... HYBRIDIZATION - The process of base pair ing leading to formation of duplex RNA or DNA or RNA - DNA molecule s. Full article >>> Hybridization : The re action by which the pairing of complement ary strand s of nucleic acid occurs. DNA is usually double- strand ed, and when......lone d using recombinant DNA techniques. This is leading to improved treatment. Royal Families of Europe ... Full article >>> The Evidence for Human Evolution Permission is given to copy and print these pages for non-profit personal or educational use. Syndicate this site ... Full art......it. Replication fork moves from 3' to 5' of the leading strand . Unwinding is also necessary for DNA repair . Full article >>> A helicase , which unwinds the DNA ahead of the fork. A primase , which generates an RNA primer to be used in DNA replication . A DNA holo enzyme , ......yrin synthesis pathway HMG-CoA reductase pathway, leading to cholesterol and isoprenoids. Full article >>> Glycogen is broken back down into glucose when energy is needed (a process called glycogen o lysis ). In glycogen o lysis , ... Full article >>> glycogen - polysa...glottis slitlike opening in the pharynx leading to the trachea (windpipe) Source: Noland, George B. 1983. General Biology , 11th Edition. St. Louis, MO. C. V. Mosby ... Full article >>> glottis : a slitlike structure at the opening to the mammalian trachea . glucagon : a horm......n vitro fertilization , including interviews with leading environment alists and biologist s. Secondary, college. [Hawkhill Associates (800/422-4295 or 608/251-3934, hawkhill@home.com)] ... Full article >>> In the same year, Richard Roberts and Phillip Sharp independently showed that the ge......;> Amplification s (or gene duplication s) leading to multiple copies of chromosomal regions, increas...n them. Deletion s of large chromosomal regions, leading to loss of the genes within those regions. Full article >>> Margaret Dayhoff proposed...... Full article >>> During development leading up to gametogenesis , an X chromosome loses a portion of the smaller arm, with the end of the long arm wrapping around - creating a ring-like structure. The chromosome is missing the short arm of the X chromosome . Full article >>&......b . external nares An external opening of the nose leading into the nasal cavity . Full article >>> The extensor s Located on the back of the forearm and a connected in a more complex way then the flexor s to the dorsum of the fingers. The tendons unite with the interosseous and lumbrical...... soil or rocks by the downward movement of water. leading strand The new continuous complementary DNA strand synthesized along the template strand in the mandatory 5' to 3' direction. Full article >>> capable of self-nourishment by using chemical elements for food, for example gree......ventral ectoderm , Hh signals in both directions leading to the expression of the patched (ptc) gene in all neighboring cells (Nakano et al., 1989; Hooper and Scott, 1989; Ingham,, 1991). Full article >>> Developmental neuroscience , which studies how the ectoderm ally-derived centra......ologous chromosomes to separate during meiosis , leading to one gamete with n + 1 chromosomes (see trisomy ) and another gamete with n _ 1 chromosomes . Full article >>> Advanced maternal age -- women over age 34 (age 35 at delivery) at increased risk for non disjunction trisomy ......ent]. The last stage of prophase 1 of meiosis , leading to metaphase of the first meiotic division . The chromosomes are at maximum condensation and the nuclear membrane breaks down. Full article >>> Diakinesis The term coined by Hcker (1897) for the stage of late prophase 1 of ...
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(Date:7/25/2008)...and Industry specialists from 22 countries are sha... species, such as mustard, radish, or rapeseed, t...nown as biofumigation. ," Brassica plants natur...hogens, principally isothiocyanates (ITCs), which ...n mustard or horseradish," says CSIRO,s Dr John Ki...
(Date:7/25/2008)...rned ,green, can potentially contain a naturally o... a risk to public health according to a review pap...Journal of the Science of Food and Agriculture (J...way the ,green, affected area is enough to elimina...per also suggests that the levels of GA in potatoe...
(Date:7/24/2008)... team led by Massachusetts General Hospital (MGH) ...r genomic research and medicine a robust method f...rticular DNA sequences for inactivation or repair....esearchers describe an efficient, publicly availab...ases (ZFNs), which can be used to induce specific ...
(Date:7/24/2008)...e Arctic Circle, scientists have found black smoke...fore. The cluster of five vents one towering near...t as 570 F., Dissolved sulfide minerals that sol...p sea have, over the years, accumulated around the...rothermal sulfide deposits ever found on the seafl...
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(Date:7/25/2008)...lliance to be presented at Fenway Park ...ly 25 /PRNewswire/ -- CVS/pharmacy announced today....4 million in just 21 days,through its annual in-s...s,the seventh year of the annual fundraising effor... for ALS research. This year,s fundraiser took,pla...
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