Karyotype

usual”(Genetic Home, 2015). In essence, the small testicle does not produce a large amount of sperm, or lead to an incomplete in puberty. In order to diagnose this disease a physician will exam the patient’s chest and genital area. A lab test called a karyotype will be…

tay-Sachs Disease.") Prenatal screening comes with a lot of benefits as well. Using different methods of screening, including amniocentesis (a procedure where some amniotic fluid is drained for karyotype analysis) and chorionic villus sampling (taking some villi cells in the placenta and analyzing their karyotype), doctors and specialist can detect the possibility of the fetus developing genetic disorders early on. For example, the triple test for Down syndrome, which tests for raised amniotic…

Down syndrome - People with down syndrome often share the same characteristics of facial features, short stature, shorter lifespan, slower development and learning capabilities. They are often victims to respiratory diseases, early Alzheimer’s, leukemia, vision problems, and hearing defects. This mutation is caused by the mother’s age or the result of nondisjunction in father’s chromosome 21(extra copy of chromosome 21). Patau syndrome - Patau syndrome causes serious defects to the eye, brain,…

2. The element being described is Sodium its symbol is Na it has an atomic mass of 22.989769. It has an atomic number of 11. This element has 11 protons, 11 protons, and about 11 neutrons. Protons have a positive charge, electrons have a negative charge, and neutron have a neutral charge. Electron shells are the outer parts of an atom containing the electrons. Valence electrons are electrons in the outermost shell. Valence electrons tell us whether an atom shares, transfers or receives electrons…

Edwards syndrome also known as Trisomy 18 occurs in about 1 out of every 2500 pregnancies in the United States alone. This genetic diseases causes severe development delays due to an extra chromosome. Down syndrome is also caused because of an extra chromosome, however the difference between these two is that Edwards syndrome deals with more medical complications and has a higher risk factor on the early months and years of life. It usually occurs during the sperm and egg formation. The disease…

analysis may be needed for further validation (Learning). FISH analysis translates to fluorescence in situ hybridization and is “used to visualize where a particular gene or DNA sequence is located within a person’s genome.”(Genetics Education) Also, Karyotype, a simple chromosome analysis, can be used to map out one’s chromosomes and make missing or added chromosomes apparent. Lastly, chromosome microarray analysis is the newest modern form of diagnosis which helps to analyze DNA by…

Progeria is a progressive genetic disorder that causes premature aging. It is extremely rare, as only one in four million newborns, will have it worldwide. Progeria is also call Hutchinson-Gilford Disease, after Dr. Jonathan Hutchinson, who described the disease first in 1886, and Dr. Hastings Gilford, who did the same thing in 1904. In 2003, Researchers from The National Human Genome Research Institute, The Progeria Research Foundation, The New York State Institution for Basic Research in…

Selective foetal reduction The diagnosis of discordant karyotype, with the presence of a serious anomaly in a pair of twins may require termination of the affected foetus. The most frequent anomalies that are indicative for selective termination are central nervous system (CNS) anomalies. Selective termination is a clinical procedure that can be performed in either the first or second trimester of gestation. The technique used depends on the chorionicity of the pregnancy. The perinatal outcomes…

While conducting field studies on a chain of islands, you decide to karyotype two phenotypically identical groups of turtles, which are found on different islands. The turtles on one island have 24 chromosomes, while the turtles on another island have 48 chromosomes. How would you explain this observation? How do you think…

Klinefelter Syndrome Michael Santiago Definitions Klinefelter syndrome - is a chromosomal condition that is a result of the nondisjunction of the chromosomes. It usually affects the male physical and cognitive development. It is characterized by an extra X chromosome. Signs and symptoms vary for each individual. It affects different stages of physical, language, and social development. It is considered as the most common sex chromosome disorder. Etiology Klinefelter syndrome is caused…