Chromosomes

Understanding Down Syndrome: The chromosome abnormality Down Syndrome (DS) takes place when an individual has a full or partial extra copy of chromosome 21. Down syndrome is a mental disability that can affect a person 's personality, health, and physical appearance. Women can catch this genetic disorder early in pregnancy by diagnostic testing. Although both parents are carriers of DS the mother 's age can make the percentage of the baby having Down syndrome higher. Children with DS have…

helped us figure out how the ends of linear chromosomes are replicated. There discovery of telomeres and telomerase did not only fil A DNA molecule is made up of two strands of polynucleotides which can be described as anti-parallel meaning one strand is moving from a 3’ to 5’ direction…

have diabetes an oral glucose tolerance test that provides a map to help find any abnormalities (Warning signs of type 1 diabetes). The genes involved with type 1 diabetes are located on two chromosome regions: one is the MHCHLA on chromosome 6p21 also known as IDDM1, and on the insulin gene region on chromosome 11p5 known as IDDM2 (Davies et al. 1994) (Dean, McEntyre 2004). These genes that are associated with type 1 diabetes are genetically heterogenous, but different genes are more…

Geographical distribution and Karyotype of Nannospalax ehrenbergi (Rodentia, Spalacidae) in Iraq (Kurdistan Region) Zaitoon Ahmed HAMAD1, Yüksel COŞKUN2*, Alaettin KAYA2 1 Dicle University Institute of Science Biology Section, Diyarbakır /Turkey 2 Dicle University Science Faculty, Department of Biology, Diyarbakır/Turkey *Corresponding author Geographical distribution and Karyotype of Nannospalax ehrenbergi (Rodentia, Spalacidae) in Iraq (Kurdistan Region) Abstract The…

Familial Hypercholesterolemia is a genetic disorder, which means that it is a disorder that is carried on from someone's biological paternal and/or maternal link, that causes low-density lipoprotein to increase. Lipoprotein – abbreviated LDL – is known as the bad cholesterol that increases the risk of heart disease and stroke. Taken from its roots, it means that it is a genetically active disorder that leads to the elevated levels of cholesterol in the human body. This disorder affects about 1…

MELAS is an uncommon hereditary disorder that can cause strokes and dementia. MELAS syndrome is a neurodegenerative disorder. MELAS stands for mitochondrial myopathy, encephalopathy, lactic acidosis, and stroke-like episodes. MELAS syndrome is brought about by changes in genetic material (DNA) in the mitochondria. Our DNA is found mostly in the cell nucleus. Some of our DNA is in another vital structure called the mitochondrion. MELAS syndrome is a known to begin in childhood,…

Beginning from the early days of Mendel’s pea plants, the study of genetics and heredity has changed from looking at the color of flowers to looking at a tiny part of one chromosome and figuring out what the abnormality is. The structure of DNA was first understood to be a helical shape in 1953. From 1953 to 1977, the advancements were astounding. It was only in 1977 that Frederick Sanger and Walter Gilbert first discovered…

The gene forked is located in the chromosome 1. It is a sex-linked recessive mutation. Even though our observational data provided us with the results necessary to identify forked, our statistical data deviated in all the genetic crosses except for the marker discriminant cross one control…

In the essay “Why Boys Don’t Play with Dolls”, Katha Pollitt explores the reasons behind why boys and girls behave differently. She builds a disdainful attitude toward the recent arguments that account for gender differences by innate biological tendencies. She argues that reasons behind the gender differences are the child’s family and culture in which they matured in. As she insists that the society, media and culture makes up a child’s mind, she also claim that parents use the arguments which…

“Turner Syndrome” Origin of Discovery Can you imagine what it would be like to have Turner’s Syndrome what that is, is a chromosomal condition that affects the development in most females, a common feature in Turner’s Syndrome is a girls or womens natural Stature (height) and it becomes most obvious to girls around age 5, another common effect is an early loss of ovarian function (ovarian hypofunction or premature ovarian failure), Turner Syndrome was founded in 1938 by Dr. Henry Turner and…