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Word: xyy (lookup in dictionary) (lookup stats)
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...screening produced 45 to 50 boys with XXY karyotypes (chromosomal arrangements) and nearly as many of an XYY karyotype. Walzer and his co-researchers have concluded that certain disturbances, notably a slowness in speech development, are associated with the extra X chromosome, Dr. Park S. Gerald, professor of Pediatrics and a participant in the study, says. Gerald states more tentatively that the extra Y chromosome can be linked "on the average" with "more excitable, more emotional" behavior than normal. Gerald says that the severity of this deviance is yet to be determined, but he indicates that the studies...

Author: By Philip Weiss, | Title: Ending the Test for Extra Chromosomes | 9/15/1975 | See Source »

This hardly solved the problem. The more crucial consent form--obtained from the XYY parents--did not detail the full extent of the investigation...

Author: By Philip Weiss, | Title: Ending the Test for Extra Chromosomes | 9/15/1975 | See Source »

...vagueness of the form was particularly offensive to the CDF. William C. Smith '55, director of CDF's medical experimentation project, explains that failure to inform XYY parents of the potential "risks" associated with their child's development is deceptive and unethical, because the parents are not told of the true nature of the research. On the other hand, Smith says, to inform the parents fully of aberrant behavior they allegedly could anticipate is equally unethical and unfair to an innocent child. Such behavior patterns have not been documented, and saddling a child's parents with such a hobgoblin might...

Author: By Philip Weiss, | Title: Ending the Test for Extra Chromosomes | 9/15/1975 | See Source »

...number of XYY males in mentalpenal institutions is "a very small number" of the estimated 100,000 XYY males in this country, he said...

Author: By Martha S. Hewson, | Title: Harvard, MIT Scientists Blast Boston Study of Male Genes | 11/16/1974 | See Source »

Beckwith said Walzer is using "subtle correction" to make parents participate in the study and may be violating HEW guidelines on informed consent in human experimentation. He said the hospital tells parents the the procedure is routine and asks them to sign a consent form. If the child is XYY, the parents receive a letter from Dr. Walzer offering help and Beckwith said "it is difficult for them to refuse...

Author: By Martha S. Hewson, | Title: Harvard, MIT Scientists Blast Boston Study of Male Genes | 11/16/1974 | See Source »

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