Cassette
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  Cassette



Cassette

   A pre-existing structure into which an insert can be moved. In molecular biology, a gene conversion process in which the old gene is replaced with a copy of a silent gene and the new copy becomes active. As the process involves replacing one ready made construct with another in an active slot, it is termed a cassette mechanism.

RELATED TERMS
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Molecular
Refers to the basic building blocks of the genetic material, such as DNA, genes and the other chemicals involved with the functioning of genes.

Gene
1. A unit of DNA that carries information for the biosynthesis of a specific product in the cell. 2. Ultimate unit by which inheritable characteristics are transmitted to succeeding generations in all living organisms. Genes are contained by, and arranged along the length of, the chromosome. The gene is composed of deoxyribonucleic acid (DNA). Each chromosome of each species has a definite number and arrangement of genes, which govern both the structure and metabolic functions of the cells and thus of the entire organism.

Conversion
A defense mechanism, operating unconsciously, by which intrapsychic conflicts that would otherwise give rise to anxiety are instead given symbolic external expression. The repressed ideas or impulses, and the psychological defenses against them, are converted into a variety of somatic symptoms. These may include such symptoms as paralysis, pain, or loss of sensory function.

Cassette
A pre-existing structure into which an insert can be moved. In molecular biology, a gene conversion process in which the old gene is replaced with a copy of a silent gene and the new copy becomes active. As the process involves replacing one ready made construct with another in an active slot, it is termed a cassette mechanism.

Mechanism
The arrangement or association of the elements or parts of anything in relation to the effect they generate; the combination of mental processes by which an effect is generated.



SIMILAR TERMS
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Cass Medical Center
Cass Medical Center is a hospital in Harrisonville, Missouri (USA).



PREVIOUS AND NEXT TERMS
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Case-fatality proportion
The number of cases of a disease ending in death compared to the number of cases of the disease. Usually expressed as a percentage.

Case-to-infection ratio
The ratio of the number of cases of a disease compared to the number of infections with the agent that causes the disease. Also called the case-to-infection proportion.

Casein
The main protein found in milk and other dairy products.

Cashew allergy
An allergic reaction to cashew nuts. Cashew allergy can be isolated, meaning that the individual is only allergic to cashews and not to other nuts, or the allergy may extend to other kinds of tree nuts such as walnuts and pistachios. Isolated cashew allergy can strike children or adults. No prior exposure to cashews is required for an allergic reaction to cashews.

Caspase 3
An enzyme that plays a key role in programmed cell death, or apoptosis. Caspase 3 has been called the "henchman that goes around and executes the cell." It is a member of the family of asparate-specific cysteinyl proteases and is also known as caspase-3, CPP32, apopain, or YAMA.

Cassette

Casting, serial
The use of successive casts to reshape deformed or spastic limbs.

Castleman disease
A disorder of lymphoid tissue (lymphadenopathy) with massive overgrowth (hyperplasia) of lymph nodes ("swollen glands"), most commonly affecting the nodes between the lungs (in the mediastinum).

Cat cry syndrome
A disorder caused by the loss of part of the short (p) arm from chromosome 5. Also called the cri du chat (or cri-du-chat) syndrome.

Cat eye syndrome
A constitutional chromosome abnormality (one that is present at or before birth) with multiple malformations characterized by the combination of a cat-like slit of the iris of the eye (vertical coloboma) and no anal opening (anal atresia). Frequently there are also down slanting eye slits (palpebral fissures), tissue tags or pits just in front of the ears, heart malformations and kidney anomalies.

CAT scan, helical
A helical CAT scan is a new specialized CAT scan technique that involves continuous movement of the patient through the scanner with the ability to scan faster and with higher definition of internal structures. Helical CAT scanning can permit greater visualization of blood vessels and internal tissues, such as those within the chest cavity. This form of scanner may be particularly helpful in the rapid evaluation of severe trauma injuries, such as those sustained in automobile accidents..

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