DNA fingerprinting of birds.DNA fingerprinting of birds
Sorting out who begat whom in the animal world can be amessy affair. Using genetic techniques developed in the last two decades, scientists have been able to detect differences fairly well between species and between general populations of animals, but they have had far less success in making the finer distinctions of parentage within a given population or species.
Two papers appearing in the May 14 NATURE, however, showthat "DNA DNA: see nucleic acid.
or deoxyribonucleic acid
One of two types of nucleic acid (the other is RNA); a complex organic compound found in all living cells and many viruses. It is the chemical substance of genes. fingerprinting'--an extraordinarily sensitive genetic technique developed for humans and used in forensic identification of individuals as well as paternity and maternity questions--can home in on genetic relations among wild sparrows as well as it does for humans. And other papers in press suggest that the technique applies to cats, dogs and mice as well.
"Its use provides an excellent means for resolving relatednessin nature, and is likely to revolutionize the study of those aspects of behavior, population genetics and biometry biometry /bi·om·e·try/ (bi-om´e-tre) the application of statistical methods to biological phenomena.
The statistical analysis of biological data. Also called biometrics. that require a detailed demographic knowledge of populations,' write Jon H. Wetton and his co-workers at Queen's Medical Centre The Queen's Medical Centre (popularly known as QMC or Queen's Med) situated in Nottingham, England, is the largest hospital in the United Kingdom. It was officially opened by the Queen on 28 July 1977, and admitted its first patient in 1978. in Nottingham, England.
In the fingerprinting technique, scientists essentially countthe number of times a particular sequence of DNA base pairs (the chemical building blocks of the DNA molecule) repeats in sections of DNA (SN: 12/21&28/85, p.390). The base-pair arrangement of these sections varies so much among individuals that even close relatives can be distinguished with this technique. And since parents pass down part of their variability patterns to their offspring, parentage can also be accurately determined.
When applied to wild sparrows, the technique enabledWetton's group and researchers at the University of Leicester History
The University was founded as Leicestershire and Rutland College in 1918. The site for the University was donated by a local textile manufacturer, Thomas Fielding Johnson, in order to create a living memorial for those who lost their lives in World War I. in Britain to unravel family genealogies as steamy as the most risque ris·qué
Suggestive of or bordering on indelicacy or impropriety.
[French, from past participle of risquer, to risk, from risque, risk; see risk.]
Adj. soap operas: They found evidence of incestuous in·ces·tu·ous
1. Of, involving, or suggestive of incest.
2. Having committed incest. relationships and "extramarital' affairs.