Cis-acting sequence

The design principle that the arrangement of page elements or the layout pattern can direct the reader's attention in a particular direction or to a specific order of items, by ...

sequence

Music; General music

Restatement of an idea or motive at a different pitch level.

sequence

Education; SAT vocabulary

The order in which a number or persons, things, or events follow one another in space or time.

sequence

Telecommunications; General telecom

An arrangement of items according to a specified set of rules, for example, items arranged alphabetically, numerically, or chronologically.

acquired immunodeficiency syndrome (AIDS)

Biotechnology; Genetic engineering

The usually fatal human disease in which the immune system is destroyed by a retrovirus (Human Immunodeficiency Virus, HIV). The virus infects and destroys helper T-cells, which ...

polymerase chain reaction (PCR)

Biotechnology; Genetic engineering

A procedure that amplifies a particular DNA sequence. It involves multiple cycles of denaturation , annealing to oligonucleotide primers, and extension (polynucleotide ...

genotype

Biotechnology; Genetic engineering

1. The genetic constitution (gene makeup) of an organism. 2. The pair of alleles at a particular locus, e.g., Aa or aa . 3. The sum total of all pairs of alleles at all loci ...

collenchyma

Biotechnology; Genetic engineering

A tissue of living cells, the walls being unevenly thickened with cellulose and hemicellulose, but never lignified; it functions in mechanical support in young, short-lived or ...