Chromosomes

its type its Medical condition, and how Down Syndrome occurs. What is Down Syndrome? Down syndrome is where an individual has a full or partial extra copy of chromosome 21. (NDSS) Also, every cell in the body contains genes that are grounded along chromosomes in the cell's nucleus. Continuing forward, there are a normally 46 chromosomes in each cell 23 inherited from the mother and 23 from the father. (Medical News Today). In addition, 80 percent of the babies born with Down Syndrome are born to

strand of chromosome 7. Some of these genes include LIMK1, CLIP2, and NCF1. Much research is focused on the absence of a gene known as ELN, also known as the elastin gene (Williams syndrome, 2013). Researchers have suggested that the deletion of this gene is a major source of much of the phenotypical symptoms of Williams syndrome

A species of yeast called Saccharomyces cerevisiae has around 6000 genes. And most of which are found to be non-essential [1]. The task is to remove all those non-essential genes or insert new sequences without affecting the organism. A synlll chromosome was designed in accordance to the stability of the gene as per Synthetic Yeast 2.0 specifications [2]. By inserting new sequences and deletion of non-essential sequences a new sequence i.e, the sequence that is going to be induced is first formed

their own operation The roles of mitosis Chromosome • A DNA molecule & attached proteins • Duplicated in preparation for mitosis 1

Down Syndrome is a genetic disorder that occurs when a persons 46 chromosomes abnormally divides into 47 chromosomes, creating a full or partial 3rd copy of the chromosome 21. Symptoms of down syndrome are the following Flat facial features, Small head, Short neck, Protruding tongue, Upward slanting eyes, that is unusual for the child's ethnic group, Unusually shaped or small ears, Poor muscle tone. Broad, short hands with a single crease in the palm, Relatively short fingers and small hands and

Cri-du-Chat (cat’s cry) Syndrome is a rare chromosomal disorder that is caused by the deletion of genetic material on chromosome 5. Due to this, this syndrome has an alternative name, known as 5p-, or 5p minus syndrome. Although this genetic defect is able to be diagnosed, the cause of the deletion on the chromosome is unknown. Almost all cases of the Cri-du-Chat Syndrome are found to have no relation with family members or previous generations. This syndrome is generally not inherited, as the deletion

caused by a person having three copies of chromosome 21 instead of two copies. Down syndrome is also known by another name called trisomy 21. In the picture above it shows a genetic analysis of a person with down syndrome. If you notice in the picture there are 2 sets of chromosome except for the 21st chromosome set there is a pair of three. This is important to notice because chromosome sets are supposed to be in sets of two. It's a fact that the three chromosomes in set 21 are what causes down syndrome

which one cell divides in to two new daughter cells that are genetically identical to one another. In the context of the cell cycle, mitosis is the part of the division process in which the DNA of the cell's nucleus is split into two equal sets of chromosomes. Mitosis on the other side is a process where a single cell divides in to two cells to produce four cells containing half the original amount of genetic information. These cells are the sex cells - sperm in males, eggs in females. Mitosis consist

Chromosomes are located in the nucleus of all human body cells. There are a total of 23 pairs (46 total) of chromosomes in the human body. Each individual chromosome has a homologous pair, which is an exact copy, of that chromosome. All chromosomes vary in size and range. Typically, the first row that is show in a karyotype are the largest chromosomes and they get increasingly smaller (Reece). There are about 198 million pairs of chromosome 3 within a body (Chromosomes). Each chromosome has a variety

receptor, alpha 2 gene on chromosome 4. This gene variation is related to conduct disorder and the antisocial personality disorder (both conditions that show impulsivity and disinhibition) , as well as a susceptibility to the dependency of alcohol. A few other polymorphisms that are possibly related with disinhibition or cognitive mechanisms include a variation of the cholinergic receptor, muscarinic 2 on chromosome 7, and the alcohol dehydrogenase 4 gene on chromosome 4 which can impact the dopamine