Homologous chromosome

Drosophila Melanogaster, or better known as the common fruit fly, is found all over the world and referred to as the cosmopolitan species (Mitrick, 2010). This fruit fly has three main body parts, which include the head, the thorax, and the abdomen. On males, the bottom half of the abdomen is black, while on the female, each segment of the abdomen is striped black. Drosophila have four main stages to their life cycle. These include: egg, larva, pupa and adult. The eggs small and translucent eggs…

partial loss 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…

Apert syndrome is a congenital disorder characterized by malformations of the skull, face, hands and feet. Apert also has lots of other symptoms that differentiate them from the average person. It is a genetic disorder which 1 in every 70,000 inherit. This genetic disorder characterized by the premature fusion of certain skull bones known as craniosynostosis. The early fusion prevents the skull from developing and growing normally and affects the shape of the head and face. It also effects a…

(scoliosis) can also be caused by Angelman Syndrome. Even with the abundant amount of disabilities that come with having this disorder, the life expectancy of the affected people is almost normal. The cause of Angelman Syndrome is a genetic mutation in chromosome 15. A person without this disorder would get one gene from their mother and one gene from their father. People with Angelman Syndrome, however, only have one of those genes active in parts of the brain, meaning that gene is either…

caused by a mutation in the ATP6V1B2 gene on chromosome 8p21 or a mutation in the KCNH1 gene on chromosome 1q32. It affects individuals who are of Eastern Indian ancestry from India and the West Indies and also individuals from European descent. Zimmermann Laband Syndrome is inherited as an autosomal dominant trait, but also may exist as an autosomal recessive trait. This disease is genetic and can only be inherited. Scientist have also found a gene on chromosome three that may cause some cases…

of 20,000-25,000 genes per one single chromosome? And one change or shortage in such a minute item can cause a major condition, disease, disorder and even cancer. Chromosomes seven - twelve have large number of gene pairs and genes that are roughly the following; chromosome 7 spans about 159 million DNA base pairs and likely contains 900 to 1,000 genes, chromosome 8 spans more than 146 million DNA base pairs, and likely contains about 700 genes, chromosome 9 is made up of about 141 million DNA…

potential chromosomal disorder in a newborn. Edwards called it trisomy which means type unknown. Then he had some of the tissue tested and founded an extra chromosome. He then re-named named it trisomy eighteen, or Edwards syndrome. Edwards syndrome is where there are two pairs of eighteen chromosomes and it has an extra chromosome. Normally chromosome 18 only has two pairs. There are two types of Edwards syndrome, full form and mosaic trisomy eighteen. In full form about ninety five…

concept of race is a social construct, but unfortunately it is still used around the world. The video shows that everyone came from a scientific Adam and Eve and how it all started in Africa. Even though there are a lot of variations in a few DNA chromosomes around the world, African DNA and its unique variations of DNA show that it is indeed in Africa where all of our ancestral DNA can call…

Description: A rare disorder, Cockayne Syndrome, has diagnostic criteria which includes: small head size, insufficient growth in weight and height (dwarfism), sensitivity to sunlight, hearing loss, tooth decay, bone abnormalities, aged appearance, and cold hands and feet. Changes in the brain viewed by a cat scan are also evidence of the disorder. There are four different types of Cockayne Syndrome which are defined by when the onset of the disease appears. CS Type I: CS Type I is the most…

XYY syndrome also known as Jacob’s Syndrome or XYY Karyotype, is rare genetic disease that affects males. XYY syndrome is a mistake that happens when “the two y chromosomes fail to separate when sperm cells are formed” (www.rarechromo.org) This is caused by having an extra “y” chromosome which gives the males forty-seven chromosomes instead of forty-six. XYY is not strictly inherited through a sex. Though it does come from the father, the father doesn’t have to have XYY syndrome in order for…