Category: Ba-Bb

A Chinese herb that belongs to a group of herbs named Scutellaria (scullcap or skullcap). It is related to mint. Both the root and the above-ground part of Scutellaria barbata have been used to make herbal medicines. The root has been used in traditional Chinese medicine to treat cancer of the liver, lung and rectum, and…

American geneticist who won the 1983 Nobel Prize in Physiology or Medicine for her discovery of genetic transposition, or the ability of genes to change position on the chromosome. Barbara McClintock was born in Hartford, Connecticut. Her family moved to Brooklyn, New York, in 1908. McClintock earned her B.S. and M.S. degrees in botany at…

A visual display using bars to represent the relative size of different categories of a variable, with each category or value of the variable represented by a bar, usually with a gap between the bars. A bar graph is often used to illustrate the major features of the distribution of data because it is an…

Proper term in mathematics for what is popularly called a bar graph. A visual display using bars to represent the relative size of different categories of a variable, with each category or value of the variable represented by a bar, usually with a gap between the bars. A bar graph is often used to illustrate the…

A rare genetic disease characterized by macrocephaly (enlarged head), multiple lipomas (benign fatty tumors) and hemangiomas (benign blood vessel tumors). The macrocephaly occurs without enlargement of the cerebral ventricles. There is mild neurological impairment and postnatal growth retardation. Less frequent features associated with the syndrome may include down-slanting palpebral fissures (eye slits), high-arched palate, joint hyperextensibility, pectus…

Treatment staining of chromosomes to reveal characteristic patterns of horizontal bands. Thanks to these banding patterns, which resemble bar codes, each human chromosome is distinctive and can be identified without ambiguity. Banding also permits the detection of chromosome deletions (lost segments), duplications (extra segments), and other structural abnormalities.

A form of chromosome band, one of the bright and dull fluorescent bands seen alternating along the length of chromosomes under ultraviolet light after the chromosomes are stained with quinacrine. The Q in Q band stands for Quinacrine, an agent used as an antimalarial agent and, in the laboratory, as a fluorescent dye.

One of the transverse bands produced on chromosomes by differential staining techniques. Depending on the particular staining technique, the bands are alternating light and dark or fluorescent and nonfluorescent. Each human chromosome has a short arm (“p” for “petit”) and long arm (“q” for “queue”) separated by a centromere. The ends of the chromosome are…

A Chinese herb that belongs to a group of herbs named Scutellaria (scullcap or skullcap). It is related to mint. Both the root and the above-ground part of Scutellaria barbata have been used to make herbal medicines. The root has been used in traditional Chinese medicine to treat cancer of the liver, lung and rectum, and…

The little child who is the infant in swaddling, the symbol of pediatrics, sculpted by the Florentine artist Andrea della Robbia (1437-1528).