X chromosome

Chromosomes, or strings of genes carrying genetic information, are vital to the existence of living things. A specimen cannot have more or less than how many that particular species needs. In humans, this number is 23. The 23rd pair of chromosomes, referred to as Group X, contain the sex cells that decide the gender of the organism. If a Y chromosome is present, the organism is male, and if not, it is a female. If the chromosomes fail to separate correctly during meiosis (type of cell division…

to get us ready to try to reproduce. Our bodies are made up of DNA. DNA is made up of chromosomes. We get 23 chromosomes from our dad and 23 chromosomes from our mom. We are made up of 46 chromosomes to make us whole. Chromosomes come in pairs, as partners. The only time they get together is during Meiosis. This is the process in which the genes between the two chromosomes in each pair producing chromosomes with new genetic combinations every time. Each…

tissue, long limbs, and abnormally small testes. Based on my findings, “Klinefleter syndrome is a chromosomal condition that affects male physical and cognitive development”(Genetics Home, 2015). This genetic disorder is a result of having 2 X and a Y-chromosomes mixed together. Individuals living with Klinefeter syndrome typically have small testes that do not produce as much testosterone as usual”(Genetic Home, 2015). In essence, the small testicle does not produce a large amount of sperm, or…

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, circulatory functions, and spine. It can also cause extra fingers, extra toes, weak muscles, cleft palates, and cleft lips. The ratio of…

Fragile X syndrome is an intellectual genetic disability that causes behaviour problems, learning difficulties and various physical characteristics. Fragile X syndrome is the most commonly inherited intellectual disability and the most common cause of autism. The degree in which the disease affects people varies from mild learning difficulties through to severe intellectual impairment. This genetic disability is caused when the gene that normally produces a certain protein that helps with brain…

parts of the second sex chromosome. This condition only affects women and girls because the X-chromosome is missing or partially missing or rearranged. X-chromosome monosomy, X-chromosome mosaicism, and X-chromosome defects are common causes of the absence or alterations of the X-chromosome. Monosomy X occurs in about half of the girls with Turner syndrome. This means that each cell in each of their bodies has only one copy of the X chromosome instead of two sex chromosomes. Mosaicism can also…

Trisomy X Trisomy x syndrome, also known as triple x and 47xxx, is characterized by the presence of an extra x chromosome in each cell of a female. Three x chromosomes are present, rather than a normal pair in the nuclei of body cells. The first published report of a women with triple x syndrome was Patricia A. Jacobs at Western General Hospital in Edinburg, Scotland, in 1959. The condition occurs in about 1 in 1,000 newborn girls. Five to 10 girls with triple x syndrome are born in the united…

of an X sex chromosome[2]. Symptoms of Turner’s syndrome include, but aren’t limited to short stature, glucose intolerance, broad chest and widely spread nipples, amenorrhea, webbed neck, aortic valve stenosis, visual impairments, hearing loss, problems with concentration, and nonverbal learning issues[3]. Not all individuals will present with the same combination of symptoms or with the same expressivity[4]. About half of the 2,500 births have only one X chromosome. This is called monosomy X…

chromatids, and chromosomes have different transformations in terms of mitosis and meiosis. Chromatin in Meiosis and Mitosis are shown differently in Interphase. In Mitosis, the chromatin is made up of DNA and proteins. The DNA coils around the protein and that structure is called a nucleosome. Each chromatid in Mitosis is made up of many strings of the DNA and proteins (nucleosomes) to form a half X. The chromosome is made up of two of the chromatids (DNA and proteins-nucleosomes) to form one…

lifetime that will carry the recessive allele and the X chromosome is seventy five percent. For the fact, twenty five percent of the cell will carry homozygous recessive allele and X chromosome, the other fifty percentage will carry heterozygous recessive allele and X chromosome. (4.) A. Twenty Five Percent B. No. C. (X)R (X)r (X)R (X)R(X)R - Female homozygous dominant (X)R(X)r - Female heterozygous (Y)r (X)R(Y)r – Male heterozygous (X)r(Y)r – Male homozygous recessive…