Y chromosome

Tay-Sachs Disease What if I told you that there was a disease that could cause your muscles to weaken. That it could also cause your brothers or sisters to die at an early age. Tay-Sachs Disease is a genetic disorder that usually happens in infants and the symptoms don’t show until the 5-6 months. This disease kills thousands if not hundreds of thousands. Tay-Sachs Disease symptoms are diagnosed according to what causes Tay-Sachs. Tay-Sachs is not inherited. Doctors, after diagnosis, will…

Have you ever heard of Wolf -Hirschhorn syndrome? Odds are you haven’t, considering that only around 1 out of 50,000 children have it. This rare condition may seem like it is unimportant and small, but people who have it may suffer from Delayed growth, Seizures, Intellectual disability, and Muscle weakness. Since there is no cure this drastically affects the person until the end of their life. During pregnancy while undergoing routine checkups in the first trimester a doctor can diagnose…

It is the process of producing female gametes.The sex determination of the embryo has occurred. The occurrence of the SRY gene on the Y chromosome on the male gonad formation and spermatogenesis, while female gonad development is the ‘default state’. The process of oogenesis produce egg cellsis also called ova.The spermatogenesis, oogenesis involves the formation of haploid sex cells in…

Turner Syndrome “Turner syndrome is a medical disorder that affects about a in every 2,500 girls.” Says Teens Health. Many people today are effected by genetic diseases, “a genetic disease is a disease that is caused by an abnormality in an individual’s DNA.” says Genetic Science Learning Center. A genetic disorder is not inherited but instead caused by a mutations in an individual’s DNA. These diseases shape who people are and affect them and the people around them their whole lives. There…

females having an extra X chromosome in each cell. Most females with triple X syndrome are normal with sexual development and are able to have children. Triple X syndrome goes along with a higher risk of learning disabilities and delayed development of speech…

you were already ten years old and just now were diagnosed with a syndrome that could have been found close to 10 years ago. Turner syndrome affects "1 in 2,500 every newborn girl," in the U.S. Turner syndrome is when a female has one working X-chromosome and one is altered or missing. The many symptoms include short stature, webbed neck and lymphedema, which is swelling of the hands and feet. To find out if you or a female you know has turner syndrome testing includes a lab test of your blood.…

caused by the attainment of an extra X chromosome at conception. It occurs in one in every 500-1000 male births but the rate is up to 20 times higher in newborns. It was first discovered in 1942 by a doctor named Klinefelter who published case reports of nine men who had breast enlargement, a lack of facial and body hair, smaller than average testicles and an inability to produce sperm. There are medical researchers that realized the role of the extra X chromosome and confirmed it to be the…

ABSTRACT In this experiment we set up crosses between mutant and wildtype flies in order to find similarities to Mendel’s work with pea plants. We did this by placing females in vials with males and waiting one week. After one week we obtained the second generation and were able to observe the different phenotypes that resulted from the cross. We were able to count each phenotype under a microscope and record the number of each type. We used this data to calculate the chi square value, which…

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 by an error that results in a male to be born with an extra sex chromosome. Each cell of the human body contains 46 chromosomes, two…

Genetics To Down Syndrome Genetics describes the makeup of our cells, genes, chromosomes, and phenotypes. When there is alter in a gene or a duplication of a chromosome, it can lead to a certain diseases. One of the main diseases known today from a duplication of a chromosome is Down syndrome. John Down first put a name to Down syndrome in 1866, but artifacts from Mexico and Saxon documented some cases of Down syndrome in individuals, and also some were found in paintings of the Renaissance in…