Chromosome

For most genes on chromosome 11, both copies of the gene are expressed in cells. For some genes, however, only the copy inherited from a person's father (the paternal copy) is expressed. For other genes, only the copy inherited from a person's mother (the maternal copy) is expressed. These parent-specific differences in gene expression are caused by a phenomenon called genomic imprinting. Abnormalities involving genes on chromosome 11 that undergo genomic imprinting are responsible

syndrome affects the male rather than female (“47, XXY”, 2016). Klinefelter syndrome is a genetic condition when a male has an extra sex chromosome, XXY instead of XY. Males usually grow without knowing that they are diagnosed with the Klinefelter’s syndrome. However, doctors can tell a male that is diagnosed with Klinefelter syndrome by testing the chromosomes of the person through blood samples. Another way, doctors can tell a male with Klinefelter syndrome by taking

crucial key for life within organisms. DNA is a complexed, long-chained molecule that encodes the genetic characteristics of a living organism.1 DNA contains ribonucleic acid and proteins within chromosomes that are found within the cell’s nucleus. In typical humans’ cells, we contain 23 pairs of chromosomes, for a total of 46 in which we get half from our mother and the other half from our father. DNA acid is a polymer made of four nucleotides: Cytosine, Thymine, Adenine and Guanine. DNA is usually

Neurofibromatosis Introduction Neurofibromatosis is a genetic disorder that causes tumors to form in the brain, spinal cord, and nerves. There are 3 types of this disorder. Type 1 usually appears in childhood, while type 2 and 3 appear in early adulthood. Type 3 can cause chronic pain throughout the body. Some cases may not require treatment other than careful observation. Other cases may require chemotherapy, radiation therapy, or surgery. In this essay i will explain the causes of the disorder

genetic material on the fifth chromosome. Discovered in 1963 by french geneticist named Jerome Lejeune. Cri du chat was described as a syndrome that consists of congenital anomalies and mental retardation, microcephaly, and abnormal face. In younger patients the cry similar to mewing of a cat is the main diagnostic feature of the syndrome. The syndrome got its name high-pitched tone of their cry.The syndrome is commonly mentioned as deletion 5p-syndrome/ chromosome 5 short arm deletion. Most cases

There are over 400,000 individuals with Downs Syndrome: reminder that Down Syndrome is also called Trisomy 21, which is an extra x chromosome on the 22nd chromosome. Given the amount of individuals with Downs Syndrome, it is key that we acknowledge that statistic and foster ways in which we make these individuals lives, and overall quality of life better. Often times individuals with Down Syndrome experience oral facial issues that include upper and lower lip placement, tongue placement, drooling

Albinism, also known as Achromasia, is a genetic disease that affects the integumentary system and the visual system. Albinism makes the body unable to distribute or produce melanin in the skin, eyes, nails, and/or hair. Albinism occurs in all racial and ethnic groups around the world. Albinism affects nearly 18,000 to 20,000 in the United States alone, and can is as high as 1 in 3,000 in other parts of the world. [1] A common misconception is that all forms of albinism affect the skin, but there

and fungi, whilst mitosis takes place in somatic cells in every organism (Vidyasagar. A, 2015). Meiosis differs from mitosis as it undergoes a process known as DNA recombination, during which genetic material interchange with chromosomes or various regions of the same chromosome. DNA recombination is a common source of genetic variation. Mitosis is the continuous process by which the body creates new cells to repair damaged or aging membranes, fibers and tissues (Clare O'Connor, 2008). The end result

the chromosomal test for Fragile X Syndrome. Fragile X Syndrome is an inherited condition in which the X chromosome is passed on from the parent to the child. If the woman has the affect X, they will have an increased chance for passing the gene on but as men have an Y as well as an X chromosome, if they have Fragile X Syndrome, their sons won’t be affected as they have their fathers Y chromosome. It is the most common form of inherited intellectual disability in males and a major cause of intellectual

Neanderthals, the neighboring evolutionary kinsfolks of modern human being, existed in enormous parts of Europe and western Asia before endangered 30,000 years ago. We also realize that they probably like our own ancestors. Couple of years ago some scientists and their team publish graph genome and turn down love own genes today and review more and more secrets about Neanderthals and human relatives. Research by Dr. Svante Paabo(1996) retrieve species of all from Neanderthal. They found DNA of Neanderthals