[Free Registration/Login may be required to access all resource tools.] Some children are born with genetic defects that are not carried by a single gene. Instead, an error in a larger part of the chromosome or even in an entire...

[Free Registration/Login may be required to access all resource tools.] Discusses how mutation or abnormal numbers of chromosomes result in genetic disorders.

[Free Registration/Login may be required to access all resource tools.] Discusses how mutation or abnormal numbers of chromosomes result in genetic disorders.

Read this passage and study the graphics to complete the five-question quiz concerning the inheritance of immunodeficiency disorders.

This site contains thorough information on Kabuki Syndrome, a rare genetic chromosomal disorder. The table of contents begins with facts about Kabuki Syndrome and contains excellent information on Kabuki. Also available in Italiano.

Read this passage and study the graphic to complete the five-question quiz related to the Chronic myelogenous leukemia and Philadelphia Chromosome.

Only a few types of aneuploidy are compatible with life. Use this drop-down menu to understand more about common genetic disorders resulting from monoploidy and polyploidy, such as Down Syndrome. Learn features of the disorder, see how...

[Free Registration/Login may be required to access all resource tools.] Some human genetic disorders are also X-linked or Y-linked, which means the faulty gene is carried on these sex chromosomes. Other genetic disorders are carried on...

A large collection of lesson and labs developed by high school biology teachers. Lesson plans cover the topics of Drosophila, population genetics, gene, molecular genetics, chromosomes, genetic disease, genetic counseling, and bioethics....

This comprehensive site offers Angelman Syndrome information for doctors and parents. The foundation contends that this syndrome, presumed rare, is present in thousands of children misdiagnosed with cerebral palsy, autism, or other...

An extensive article discussing the role of a genetic counselors, who gets genetic counseling, how they use genetic and chromosome maps for diagnosis, and how they help people cope with genetic diseases.

This explanation of the two forms of neurofibromatosis (NF)reveals the chromosomal locations of NF genes and their related proteins. Illustrated.

Brief tutorial dealing with Klinefelter's diagnosis. Provides illustration of nondisjunction and Klinefelter's karyotype. Information provided regarding other sex chromosome aneuploidies.

Read about the findings from the scientific group from the National Center for Human Genome Research, which published a modification to traditional karyotyping that permits rapid identification of chromosomal alterations.

Written by a teaching assistant who saw a need to advocate for children with Angelman Syndrome and their parents, this PDF article provides detailed information, including a personal story, on schooling for students with AS. Also...

This site from WebMD Health is a very informative approach to klinefelter's syndrome. It has a fairly in-depth topic overview, then discusses symptoms, exams, treatment, home care and other places to get help.

Wikipedia entry for Klinefelter's Syndrome in both mammals and adults. Links are also given for additional information on related subjects.

This informational text gives a brief overview of the causes and effects of Treacher Collins syndrome, the same condition that Auggie, the protagonist of Wonder by R.J. Palacio, has.As you read this text, try to imagine the different...

Read the passage "Homocystinuria and Its Associate Treatments," and complete the related five-question quiz.

Read this passage and study the graphics to complete a five-question quiz related to translocation.

Dynamic site explores Klinefelter's Syndrome. Be sure to check out link to left for recent research articles.

This site has information on causes, symptoms, treatment, support groups, expectations and prognosis related to Cri-du-Chat, a genetic syndrome. Information is objectively presented and fairly thorough. Information is provided by A.D.A.M.

Key facts about Down Syndrome are available on this page--just roll over the icons. For more detailed information, use the left navigation to explore causes, diagnosis, treatment, and more.