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Showing posts from January, 2021

Dyslexia

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                            Dyslexia Introduction Physical handicaps might also lead to slackness at school. A child with a hearing or visual impairment  needs attention. Dyslexic children have problem learning to read and write, particularly in learning to spell correctly and to express thoughts on paper. They may have trouble in differentiating between left and right, in learning to tell the time or tie shoe laces, or in following instructions, or  they may even confuse spoken sounds. Any hearing defect must be ruled out in these children. A child having dyslexia may  be wrongly diagnosed , as being mentally retarded. That is not correct and today these children can have normal schooling and do not show backwardness in other subjects. In fact they may be highly gifted in other fields, such as business, the science and creative art. Albert Einstein, Leonardo da Vinci, Thomas Alva  Edison and Hans Christian Anderson were all said to be dyslexic. Early diagnosis  is important in these c

Down Syndrome

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                          Down's Syndrome   (Down Syndrome, Trisomy 21,    A neuploidy )                                        "Prevention is better than cure." Down syndrome is one of the  most common chromosome abnormalities in human. It occurs in about 1 in 1000 babies born each year. It is named after British doctor John Langdon Down who fully described the syndrome in 1866.  More than  1 million  cases per year (India).  Treatment can help, but this condition   can't be cured.  Requires a medical diagnosis. Down syndrome is an autosomal disorder because it affects chromosome 21, which is an autosome. Down syndrome is neither a dominant nor recessive trait because it is just an error in the "translation" process of chromosome 21. Though a Down Syndrome  cannot be preventable, it can be identified in uterus through a  variety of screening and diagnostic test. Introduction Down's syndrome is a genetic disorder caused when abnormal cell division result