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Viability

...s it's extremely subtle, and the vectors do just fine even with a bunch of virus es or bacteria living inside them. Full article >>> Effects of chromosomal breakage and realignment: Quite often these types of changes do not affect the viability of the organ ism (the genes are still ...

Tunica

..., the tunica albuginea, the testis contains very fine coiled tubes called the seminiferous tubules . The tubes are lined with a layer of cells that, from puberty into old-age, produce sperm cells . Full article >>> Annelid worms and tunica tes have a primitive brain called a ganglion...

T cell

...on . Cotransduction frequencies can be used for fine mapping of genes. Full article >>> Definition: A two-part cell division process in organ isms that sexual ly reproduce, which results in gametes with one-half the number of chromosomes of the parent cell . Related Resources:...

Secondary root

secondary root s. The network of fine roots that develops from the primary root s of a strawberry plant and picks up water and nutrients from the soil; white roots . Full article >>> secondary root ( Lateral root.) A root that arises from another, older primary ...

Pollination

...#62; pollination (pol-eh-nay-shun) [L. pollen, fine dust] The placement of pollen onto the stigma of a carpel by wind or animal carrier s, a prerequisite to fertilization . Full article >>> pollination The trans fer of pollen to a receptive surface; the stigma in angiosper...

Origin of replication

...er end. Full article >>> This works fine for the 3' -> 5' strand of a chromosome as the DNA polymerase can move uninterruptedly from an origin of replication until it meets another bubble of replication or the end of the chromosome . Full article >>> Protein ...

Ocular

...piece objective lenses coarse adjustment knob fine adjustment knob object holder or stage mirror diaphragm and condenser ... Full article >>> Ocular albinism (OA1) (OMIM 300500) affects only the eyes, and occurs primarily in males, as it is X-linked inherited. Nonetheless, ski...

Nucleoli

...ulture 3T3 line the staining is intranuclei, with fine dots forming chains surrounding dark areas, which do not correspond to the nucleoli . Full article >>>...

Microscope

... type of scanning- probe microscope , in which a fine needle attached to the tip of a soft cantilever scans the surface of a specimen. Full article >>> In a fluorescence microscope , you see only what you illuminate. Just like at night, you shine your lights at something, and whatever is...

Microbial mats

... , or other soluble material into a cell using a fine micro capillary pipet. Full article >>> AKA: Microbial mats Layered groups or communities of microbial population s. A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ... Full article >>> See Microbial mats . Bio...

Microbe

... , or other soluble material into a cell using a fine micro capillary pipet. Full article >>> These microbe s support a large population of animals , e.g., tube worms. Some of these worms harbor chemo autotrophic microbe s within their tissue s which probably supply them with the ...

Leptotene

...s , when the chromosomes first become visible as fine threads and have not yet associated in pairs. Full article >>> Leptotene : chromosomes condense, the axial element of the synaptonemal complex (a protein lattice that keeps homologous chromosomes toghether) is formed. Full ar...

Lens

...3. objective lenses 4. coarse adjustment knob 5. fine adjustment knob 6. object holder or stage 7. mirror 8. diaphragm and condenser ... Full article >>> The optical zoom lens system assists the objective in image magnification. It determines the size of the scan region and the appa...

Immunology

...s Immunology Page Immunology and AIDS Another fine problem set with tutorials from the University of Arizona's Biology Project. What The Heck Does Protease Inhibitor Have To Do With HIV? An article from "Bugs in the News" ... Full article >>> philanthropic organ ization that suppor...

Hindbrain

...rain stem . Functions of the cerebellum include fine motor coordination and body movement, posture, and balance. Full article >>> the posterior most of 3 primary vesicle s (bulges) formed from the anterior neural tube . The hindbrain further subdivides into a posterior myelencepha...

Gymnosperms

...yte in gymnosperms and angiosperm s (pollen = fine flour) ... Full article >>> in the sperm plant s ( Sperm atophyta ) division . Examples are cycad, conifer and gingko. Cycads are the most primitive ones evolved in the Devonian period about 400 Mya . There are about 700 extant ...

Gel

...ticle >>> Gel : A dense net work of fine particles dispersed with water (Jell-O is a gel ). Used to separate different-sized strand s of DNA . Gene : The fundamental unit of heredity . Full article >>> gel That state of a colloidal system in which the solid particles f...

Deletion

... the position of overlapping point mutation s for fine structure mapping of a genetic locus . Full article >>> deletion The loss of a chromosome segment without altering the number of chromosomes . dendrites Short, highly branched fibers that carry signals toward the cell body...

Cilium

...the "9+2" structure A cilium (plural cilia) is a fine projection from a eukaryotic cell . Full article >>> cilium pl. cilia (silly-um) [L. eyelash] A short cellular appendage specialized for locomotion, formed from a core of nine outer doublet microtubules and two inner single micro...

Central cell

...he triploid (3n) endosperm nucleus . pollen [L. fine dust] ... Full article >>> endosperm A food storage tissue that provides nutrients to the developing embryo in angiosperm s; formed from the triploid cell produced when a sperm cell fertilizes the central cell . Full art...

Carrier

...en time for immunoelectron microscopy, so that the fine structure and molecular make-up of the carrier that elicited the ... Full article >>> Vector Generally a carrier nucleic acid molecule which allows trans fer of insert ed ( recombinant ) DNA into a host cell . Full ar...

Capillary

... , or other soluble material into a cell using a fine micro capillary pipet. Mitosis . The replicatio... , or other soluble material into a cell using a fine micro capillary pipet. Mitosis . The replication of a cell to form two daughter cell s with i...

Bark

...stant. A fire leaves scorched earth covered with a fine layer of powdery black ash in its wake. Full article >>> A population has, for example, thicker fur, rougher bark , longer ears, or larger seeds than another population , and although this character istic may vary within each pop...

Alveoli

...ormous surface area for gas exchange. A network of fine capillaries allows trans port of blood over the surface of alveoli . Full article >>> emphysema An irreversible, obstructive lung disease in which airways become permanently constricted and alveoli are damaged or destroyed. Emu...
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(Date:5/15/2008)...uantity of nitrogen compounds emitted into the atm...els and the use of nitrogen fertilizers enters the... dioxide from the atmosphere, concluded a team of ...ty Distinguished Professor of Oceanography and Atm...experts from institutions around the world present...
(Date:5/15/2008)...ers Karen Staehling-Hampton, Ph.D., Managing Direc...D., Investigator, collaborated with colleagues fro...se spinal mutations in chick and mouse model syste...ith congenital vertebral abnormalities. , The d...e American Journal of Human Genetics. , Working...
(Date:5/15/2008)...ea may be able to stave off the cognitive deficits...cording to a new study published in the second iss...can Journal of Respiratory and Critical Care Medic...a polyphenols (GTP), administered through drinking...f oxygen during 12-hour night cycles, mimicking th...
(Date:5/14/2008)...hers have developed what they believe is the first... common target used to treat all HIV patients, whi...ugs. , Researchers at the University of Michigan...mpound, and then confirmed in the lab that the com...n established target for AIDS treatment. The prote...
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