Essays on Reverse Transcriptase

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Description of HIV

Human Immunodeficiency Virus (HIV) is a virus that weakens and destroys the immune system of the body so that the body cannot defend the infection. HIV positive person also possesses AIDS (Acquired Immunodeficiency Syndrome), and if HIV is treated at its early stage, the risk of AIDS can be averted. If an HIV-positive person is diagnosed with AIDS, it means that the complete destruction of the immune system has been accomplished by the HIV and that increase the vulnerability of the patient towards various opportunistic infections. The ...

INTRODUCTION

In the 1980s a new disease was spreading. It was previously unknown, but seemed quite contagious and quite virulent. HIV, the Human Immunodeficiency Virus, is defined exactly as it sounds. It is a virus that causes an infection that negatively affects the immune system. That infection attacks and weakens the immune system, making an individual at greater risk for contracting other opportunistic diseases. When the immune system becomes too damaged it leaves the patient open to contracting AIDS, the Acquired Immunodeficiency Syndrome, which essentially disables the immune system, which leaves sufferers to deal with many of unpleasant symptoms associated ...

Introduction

Tooth development involves a complex process whereby teeth are formed from embryonic cells, and then eventually mature after erupting as evident in the mouth (Eckhardt, Jágr, Pataridis, & Mikšík, 2014). The development usually originates from mesoderm and ectoderm. At the ectoderm found in the oral cavity, there is the development of enamel and other tissues also come from associated mesenchyme. All teeth don’t develop at the same time, but rather in stages (Eckhardt, Jágr, Pataridis, & Mikšík, 2014). First buds are always observed in the region of anterior mandible, followed by anterior maxillary area then finally ...

HIV/AIDS

December 1, is World’s AIDS Day. At the initiative of the World Health Organization, for the first time, this date was marked as World AIDS Day on December 1, 1988. At that time, around 7 million people were infected with HIV. In 5 years there were already 14 million, today more than 36.9 million people in the world are living with HIV (“Global Statistics”). The first notice of new disease was placed in 1981 in the American weekly newspaper “Morbidity and Mortality Weekly Report”. According to some scientists the human immunodeficiency virus derived from green monkeys immunodeficiency virus. ...

Telomerase also known as telomere terminal transferase is a type enzyme in all vertebrates that extends Die ribonucleic acid sequence by repeating TTAGGG to the Die ribonucleic acid terminal strands in the region known as the telomere. It is found in adult germ cells, fetal tissues, and tumor cells. Telomere is the region of repeated nucleotide, which is made up of non-coding Die ribonucleic acid material. The region prevents loss of vital Die ribonucleic acid from chromosome terminals. This results to only a hundred to two hundred nucleotides being lost each interval the chromosome is duplicates, thus no damage is caused ...

HIV VIRUS

The HIV virus is the causative agent of Human Immunodeficiency Virus (HIV). It usually infects the CD4 + T Helper cell by binding to the cell membrane, this is then followed by membrane fusion; a process that allows the virus to release viral particles into the host cell. Once infected, the T-Helper cell turns into a HIV replicating cell since the viral RNA is converted into DNA by reverse transcriptase a process facilitated by the viral proteins [ CITATION bio \l 1033 ]. The double stranded viral DNA is then transported to the nucleus where it is fused with the normal host DNA by ...