Essays on Y Chromosome

Turner’s syndrome is a genetic disorder which mainly affects female growth and development. It is also termed as gonadal dysgenesis which occurs because of the absence of sex chromosome (X). The absence of the X chromosome causes abnormal development in human females. Instead of having a pair of 46 normal XX chromosomes, females with gonadal dysgenesis develop 45,X chromosomes (Castiglia, 1997). This odd combination of chromosomal pairing results in a conflicted sex of the person, where they are neither distinguished as male or female, due to the absence of the second X chromosome that would establish them ...

Trisomy

Chromosomes are marvelous things! They carry in their genes the entire genetic code required to build a human being. Comprised of nucleic acid (DNA) and proteins, twenty-three pairs of chromosomes located in the cell nucleus are needed for the normal development of a human embryo. However, sometimes things go wrong. This paper will discuss some of the consequences of faulty chromosome separation during fertilization, resulting in Trisomy. Trisomy is a chromosomal condition which occurs when three chromosomes, instead of the normal two are produced during cell division. This happens due to the failure of human chromosome pairs to separate ...

Introduction

The relationship between man and woman is a very complicated thing in when you look at it in depth. Men tend to be larger and stronger women tend to be smaller and not a strong. Yet in still, people consider men and women to be equal mental and the 2000 century. This essay will aim at comparing the relationship between men and women and explain the significance of the differences and similarities that may exist between them. Although, men and women are similar, they contain extensive differences. Some of the similarities between men and women are purely being human. The ...

Mass disasters are events that occur without warning and causes large number of deaths. These disasters may be natural, accidental or intentional. Natural disasters include calamities like earthquakes, tsunamis, flooding etc., while accidental disasters include building collapses, train and aircraft disasters. Intentional disasters are observed recently with acts of terror like bombing and other weapons of mass destruction. The large number of human lives lost in these disasters requires identification. The forensic examination is not only for humanitarian reasons but also for possible criminal investigations. DNA analysis is one of the best methods for identification of individuals from ...

Background

In a recent documentary published by National Geographic about the trails of the DNA, particularly in Africa, a lot of facts and correlations between races were discovered. The documentary focused on three races: the Africans, Europeans and the Asians. The researchers theorized that majority of humans in this planet have African origins, at least by looking at their mitochondrial DNA and Y chromosome structures. This paper will focus on the different aspects of DNA; what is a DNA and why its journey is such a good one to follow.

Basic Information about DNAs

DNA is a type of nucleic acid located inside cells of living organisms. It is a ...

Introduction

According to William (2006), gender can be defined in terms of social classes (man or woman, boy or girl) or factors associated to living the social duties of man or woman. In addition, they argue that gender identity is the feeling of one belonging to either the category of women or men. On the contrary, he perceives intersexes as lacking gender identity. Additionally, according to He also argued that, there exists a strong relationship between hormones and behavior which consequentially influence the gender identity of an individual.

Thesis

Gender identity, a process of self-identification in relation to sex, can be based on either ...