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White in Biological Definition

Albinism

... have flax-white hair, blue eyes and pale white skin which makes them stand out. Sometimes hair ... a picture with a film camera that is painted white within, rather than black. Such sensitivity ... have been no reports of true albinism in horses. white horses lack the pink eyes that make a true ....

Allele

... in red petals, while another might result in white petals. Some organisms are diploid - that is, ... in a heterozygous flower (with one red and one white allele), the petals will be red. The recessive ... at the same time; for example, both red and white petals in the same bloom or red ...

Full blood count

... from a blood count 3.1 Red cells 3.2 white cells 3.3 Platelets Automated ... are used to calculate the number of red and white cells per litre of blood. To identify the numbers of different white cells, a blood film is made, and a large number ...

Brain

... networked and convoluted grey matter and white matter . Grey matter refers to tissue mostly ... in clusters called nuclei deep within the brain. white matter refers to axons and their surrounding myelin insulation, which gives this tissue its white ....

Pigment

... selective absorption, there is no such thing as white pigment. A white object is simply a diffuse reflecting object ... Lamp black Mars black Lead pigments (Lead white , Naples Yellow , ...

Biotechnology

... engineering genetic cures to diseases through genomic manipulation . white biotechnology , also known as grey biotechnology , is biotechnology ... example would include an organism designed to produce a useful chemical. white biotechnology tends to consume less resources that traditional processes ...

Blood

... tissue composed of fluid plasma and cells ( red blood cells , white blood cells , platelets ). Medical terms related to blood often begin in ... are also marked by proteins that define different blood types . white blood cells or leukocytes (3.0%), are part of the immune system ; they ...

Drosophila

... egg "The female fruit fly lays batches of between 15 and 20 white eggs each day." (Burton) A female lays up to 2000 pearly white eggs, each with a pair of “wings” or respiratory ...

Heterozygote

... dominant homozygote pink flower and pp for the recessive homozygote white flower. When these are crossed, the F1 or second generation will be ... nor recessive but are intermediary: the red carnation crossed with a white carnation will give you heterozygote pink carnations. See also ...

Immune system

... chemicals like microbial products, complements, damaged cells and white blood cell fragments; chemotaxis is followed by adhesion , where the ... adaptive immune system is based on immune cells called leukocytes (or white blood cells) that are produced by stem cells in the bone marrow . In ...

Malpighian corpuscle

... — the initial filtering component of nephrons in the kidneys white Nodules — follicles in the white pulp of the spleen , containing many lymphocytes These structures ...

Magnetic resonance imaging

... MRInteractive — Animations and Tutorials describing MRI white Paper on MR Safety — ACR's white Paper (combined 2002 and 2004) ...

Thomas Hunt Morgan

... a red-eyed female. Their progeny were all red-eyed, suggesting that the white eye trait was recessive. Morgan thus named the gene white , starting the tradition of naming genes after their mutant allele . As ...

Absorption spectrum

... can be regarded as the opposite to an emission spectrum , which is a depiction of the specific wavelengths emitted by a material. Let us consider white light, which consists of electromagnetic radiation at all frequencies, passing through a sample of cold gas. For any collection of atoms or ...

Albumin

... Albumin is a blood plasma protein that is produced in the liver and forms a large proportion of all plasma protein. It is also found in egg white . The normal range of albumin concentrations in human blood is 3.5 to 5.0 g/dL, and albumin normally constitutes about 60% of plasma protein; ...

Alexander Fleming

... colours. Serratia marcescens - red Chromobacterium violaceum - purple Micrococcus luteus - yellow Micrococcus varians - white Micrococcus roseus - pink Bacillus sp. - orange Fleming died in 1955 of a heart attack . He was buried as a national hero in the ...

Arabidopsis

... specimens treated with mutagens and then selected for the absence of gravitropic action have shown both negative phototropic response to blue or white light, and positive phototropic response to red light. The photosensitive pigments phytochrome A and phytochrome B mediate this red light based ...

Cancer

... the leukemias and the central nervous system cancers. Female infants and male infants have essentially the same overall cancer incidence rates, but white infants have substantially higher cancer rates than black infants for most cancer types. Relative survival for infants is very good for ...

Cartilage

... ( elastin ) scattered throughout the matrix. This provides a tissue which is stiff yet elastic. Fibrocartilage Fibrocartilage (also called white cartilage) is a specialised type of cartilage found in areas requiring tough support or great tensile strength, such as between intervertebral disks, ...

Chlorophyll

... a leaf from a variegated plant and exposing it to light for several hours. (Variegated leaves have green areas that contain chlorophyll and white areas that have none.) When tested with iodine solution , a color change revealing the presence of starch occurs only in regions of the leaf that ...

Collagen

... that leads to loss of teeth and easy bruising caused by a reduction in strength of connective tissue due to a lack of or defective collagen. The white collagen that makes up the matrix of most connective tissue in mammals consists of inter-woven fibres of the protein collagen. The collagen fibres ...

Cytotoxic T cell

... A cytotoxic (or T C ) T cell is a T cell (a type of white blood cell ) which has on its surface antigen receptors that can bind to fragments of antigens displayed by the Class I MHC molecules of virus ...

Fungus

... 6 Miscellaneous 7 References 8 External links Human consumption Some fungi are popular as food : Shiitake mushrooms , white mushrooms , puffballs , Morels, truffles and Mexican Corn smut are examples. Some mushrooms are also ingested recreationally for their ...

Glycoprotein

... surrounds the oocyte , and is important for sperm -egg interaction. Soluble glycoproteins often show a high viscosity , for example, in egg white and blood plasma . See also Proteoglycan Abeta [1] ...

Helper T cell

... A helper (or T H ) T cell is a T cell (a type of white blood cell ) which has on its surface antigen receptors that can bind to fragments of antigens displayed by the Class II MHC molecules found on ...

Homunculus

... Giessen during the 18th century , was to take an egg laid by a black hen, poke a tiny hole through the shell, replace a bean-sized portion of the white with human sperm, seal the opening with virgin parchment, and bury the egg in dung on the first day of the March lunar cycle. A miniature humanoid ...

Leaf

... stellifrom: with star-shaped hairs. strigose: with appressed, sharp, straight and stiff hairs. tomentose: densely pubescent with matted, soft white woolly hairs. cano-tomentose: between canescent and tomentose felted-tomentose: woolly and matted with curly hairs. villous: with long and ...

Protein

... the benefits of protein combining can be achieved over a longer period of time. Ovo-lacto vegetarians usually do not have this problem, since egg's white and cow's milk contain all essential amino acids. Peanuts , soy milk, nuts, seeds, green peas, Legumes , the alga spirulina and some grains ...

Red Queen

... between two adaptations of the polar bear . This animal has a coat of hair which is thick to help the bear survive the cold of the arctic and white in order that the bear can stalk seals for food. For the first case the selection pressure is likely to be constant or subject to random change, ...

Species

... and white-backed (southern) Australian Magpies do not blend from one type to another: northern populations have black backs, southern populations white backs, and there is an extensive hybrid zone where both 'pure' types are common, as are crossbreeds. The variation in Koalas is clinal (a smooth ...

Stem cell

... removed before chemotherapy, and then reinjected after treatment is terminated, the stem cells in the bone marrow produce large amounts of red and white blood cells, to keep the body healthy and to help fight infections . Since the 1980s stem cells have been taken from the blood instead of the ...

T cell

... microarchitecture of thymic epithelioreticular cells. The interaction is bidirectional. This phenomenon is called " cross-talk ". See also white blood cell Sources Janeway , et al., Immunobiology. 6th ed., Garland Science, 2005. ISBN 0815341016 . NCBI makes the 5th edition ...

Optical spectrum

... used the Latin word spectrum (appearance or apparition) in print in 1671 . He was describing the phenomenon of colored bands dispersing from white sunlight passing through a prism . Explanation of Newton's experiment When a beam of sunlight strikes the face of a glass prism at an angle, ...
Other Contents
(Date:9/18/2014)... icy moon of Uranus, is one of the most ... Despite its relatively small size, Miranda appears to have ... the formation of at least three remarkable and unique ... These coronae are visible in Miranda,s southern hemisphere, and ... corona, the largest, has ridges and troughs with up ...
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