Y chromosome

Remember the silly sayings kids would tease each other with in kindergarten? Sayings such as, "Girls go to Jupiter to get more stupider, boys go to mars to get more candy bars." Even during childhood we knew that men and women are different. But just what is it that makes each gender so different from one another? Think about it, males and females breath, eat, and reproduce. Each has one heart, two lungs, two legs, two arms, one brain. So what is it exactly that makes each so different? Biological

Even if the percentage for hormonal and gonadal abnormalities is more compared to chromosomal abnormalities in SA, cytogenetic investigation is a must. The percentage of total CA (16%) in SA of the present study will hold good with previous studies which vary from 5 – 33.3% and pure numerical abnormalities (45,X; 47,XXX) could not be observed (table 3). The CA observed was only X mosaicism in two of the studies (gupta, Butnarui) as compared to present study (16/43%). The percentage for X mosaicism

Alasdair, Wilkins. "Why Inbreeding Isn 't as Bad as You Think." Io9. Io9, 30 Dec. 2011. Web. 05 Feb. 2016.. In the article, “Why Inbreeding Isn’t as Bad as You Think”, Wilkins debunks the myths behind inbreeding and attributes them to cultural taboos. Wilkins alludes that cousins who are the first in their family lineage to inbreed have the exact same changes of having healthy offspring as unrelated couples. He then mentions that marrying a second cousin would greatly increase one 's chance of having

things describe XYY Syndrome, also known as 47, XYY Syndrome; Jacob’s Syndrome; XYY Karyotype; and YY Syndrome. (NORD). It is a genetic disease in which males have an extra Y chromosome due to an error in cell division. Definition and effects on the body XYY Syndrome is a genetic disease where a male has an extra Y chromosome. This could then lead to an increased risk of learning disabilities.(Genetics Home Reference). XYY Syndrome

that happens during the sex cells reproduction. It's caused one extra copy of the X chromosome in each cell (xxy), the most common cause. An extra x chromosome in some of the cells (mosaic klinefelter syndrome), with fewer symptoms. More than one extra copy of the chromosome, which is rare and results in a severe form. Error in cell division, called nondisjunction, results in a egg or sperm cell with extra x chromosome mosaic klinefelter syndrome is caused by random mutation during fetal development

Introduction According to the statistical predictions and Mendelian law of segregation applied to X and Y chromosomes, the numbers of boys and girls born are supposed to be equal, so the sex ratio for humans is expected to be 50:50 (1). However, in the real world, the observed results do not follow this pattern; the actual values can be as high as 170 boys born to 100 girls (2). The major reason that supposedly causes such imbalance in human sex ratio at birth is that more male embryos tend to survive

I chose to research Turner Syndrome because it sounded very interesting. Turner syndrome is a condition that affects females only. Turner syndrome is the result of a missing, whole or partial, X chromosome. Turner syndrome can be diagnosed before birth but will occasionally not be diagnosed until the teen years. Diagnosis will depend upon symptom severity. Turner syndrome has symptoms for both those born before and after birth. Diagnosis is dependent upon finding symptoms when it comes to prenatal

cured because you cannot fix chromosomes but only can fix the defects that occur because of the chromosomal disorder. This disorder is a problem with the number of chromosomes a person is born with. The 18th chromosome is half duplicated causing birth defects and problems in their development, also allowing only for a short lifespan. This disorder is not inherited, but instead happens randomly when the chromosomes of the mother and father combine and a third chromosome 18 is formed. There is no known

GENETIC DISORDERS: COLOUR BLINDNESS Briefly describe the disorder. Include characteristics, symptoms, age of onset and any relevant ethnic information. Do NOT list every symptom or characteristic. Include only the most relevant and important points. Colour blindness is a disorder where a person has the inability to distinguish between colours, due to missing colour-sensing pigment in the eye’s retina cones. Around 1 in 12 men have this disorder and 1 in 200 women have it. Characteristics of blindness

The pathophysiology topics to be covered concerning Klinefelter Syndrome (KS) includes why there is an extra X chromosome and the affects the extra X chromosome has on the body. Part one Klinefelter Syndrome is a sex chromosome disorder. The disorder is described as having at least two X chromosomes and one Y chromosome (47,XXY) (Huether 47). Because there is at least one Y chromosome in the genetic make up, this disorder only affects males. Males with Klinefelter Syndrome often have delayed physical