男女聪明基因定律 -- 有没有道理？ 为什么？

千江有水千江月

Scientists find gene for intelligence by Steve Connor Science Correspondent THE FIRST gene linked with high intellectual ability has been found by scientists. The discovery could herald the development of genetic tests for young children to identify high-flyers. The gene has been found by a team headed by Professor Robert Plomin, a leading behavioural geneticist at the Institute of Psychiatry in London. He discovered it by comparing the DNA of several groups of about 50 people who scored well above average on a range of IQ tests. Details of the research are expected to be revealed this week at an international conference on psychiatric genetics in Santa Fe in New Mexico. Plomin refused to comment on his findings in detail, but it is understood that the scientists believe the gene may account for about 2% of the variation in intelligence between individuals when they are compared through IQ tests. Although this may appear to be only a marginal difference, it is only one gene that has been discovered and researchers believe there will be others. The fact that a link has been established will be regarded as a significant breakthrough by the scientific community. Commentators believe the gene resides on chromosome 6, one of the 23 pairs of chromosomes that form the human genetic blueprint. Plomin's study involved more than 300 people split into separate groups depending on their intellectual ability. Some had very high IQs, some were average and others scored well in certain intellectual pursuits such as mathematics and verbal ability. Cells taken from each of them were stored as permanently living cultures so that DNA could be taken and analysed at any time in the future in order to isolate any other genes that may be implicated in high intelligence. Plomin said it would be possible to understand more about inherited defects in intelligence by studying the normal range of intellectual ability, including those people who are exceptionally gifted. He believes that the genetic component of intelligence may be determined by a number of different genes, possibly 100, with some being more important than others. The research, however, has been controversial, with eminent scientists saying it would be unethical to carry out the work without discussing its implications more widely with the public. Professor Peter Harper, director of the Institute of Molecular Medicine in Cardiff, wrote an open letter in 1995 to the journal Behaviour Genetics arguing that the research could lead to genetic screening of embryos and foetuses for "intelligence genes" without an adequate scientific basis. As a result of the outcry, the Medical Research Council said it would consult the public more widely before giving Plomin several million pounds in research grants to carry out a large study on identical and non-identical twins. Plomin wants to collect the DNA of all twins born between 1994 and 1996 and relate genetic and environmental differences to any mild mental impairment. If it goes ahead, it will be the biggest twin study ever undertaken in Britain and could take several decades to complete. Plomin showed earlier this year that genes appear to be more important in explaining differences in intelligence in older people than environmental influences. "Education has greatly improved their intelligence, but the differences among them . . . are largely due to genetic differences," he said.

xj19860712

聪明有啥用

还是要自己努力的。

遗忘的岁月

进来看看！

xj19860712