(2 points) Discuss the arguments for and against the classification of viruses as living organisms. For: viruses are classified as living organisms due to their possession of DNA or RNA in their systems. DNA and RNA are essential components of any living organism.…
The beginning of the virus history is much older. The very first implication for program acting like a “VIRUS” is “Self-Reproduction Automata” established in 1949 to produce a large amount of viruses. In 1966, an article wrote by the…
This pathogen is in the Orthopoxvirus genus, and is one of the largest animal viruses. There are many other similar viruses in this genus, some of which can also infect humans, but are less virulent. The Variola major virus is a parasite that attacks a specific type of host organism, namely human hosts, and cannot be transmitted through insects or animals. Transmission through aerosols in the environment is the most common, as this virus cannot survive in the environment for long. The easy method of transmission, along with the virus’s ability to evade the host’s immune system, makes for a deadly pathogen that caused global pandemic.…
However, when left alone they can’t reproduce. Only when they infect other organisms can they make more of their own kind. Should viruses be considered living? Why or why not?…
Evolution does not occur by itself. It uses thousands of organisms that twist together to form all the life on this planet we call home. In our world, nothing exists in isolation yet everything is weaved together to form a complex system of evolutionary changes. In isolation, parasites could not survive and reproduce, plants could not spread their seeds, viruses could not infect their host, and organisms could not form adaptations from their environment that allow them to slowly evolve into better-adapted organisms. Parasites are organisms that need a host to survive and reproduce.…
Integrase and other cofactors act to RNA virus to fuse with the cell DNA hospedadora4 through transcription in the genome of the cell harboring the virus. Thus, the cell is infected by the virus. After this process, lentiviruses react one of two ways: it can happen that the dormant virus from the infected cell while still in office, or that the virus begins to replicate actively and release virions capable of infecting other cells. The retrovirus HIV shares with the essential characteristics of that family. The virion contains genetic information in the form of ribonucleic acid (RNA), protected by a membrane envelope.…
What is smallpox exactly? Smallpox is actually the nickname of the virus, the scientific name is Variola which may appear as V. major or V. minor. Variola virus is relatively stable in the natural environment. If aerosolized, it will retain its infectivity for at least several hours if not exposed to sunlight or ultraviolet light. Since the virus is two hundred and sixty by one hundred fifty nanometers and contains a molecule of double stranded DNA putatively coding for some two hundred different proteins; makes smallpox one of the largest viral genomes known which makes it especially difficult to create a synthetic copy of the virus for medical purposes.…
Smallpox Smallpox was an infectious disease caused by the variola virus (variola major and variola minor). Smallpox gets its name from the pus-filled blisters (or pocks) that form during the illness. The variola virus, which belongs to the genus Orthopoxvirus, the family Poxviridae and subfamily chordopoxvirinae, is a double-strand DNA virus.…
Once the virus enters the body, it is adsorbed to the host cell via the glycoprotein spikes. The…
Globally individuals develop and obtain disease. Among these diseases is the hepatitis B virus (HBV) and breast cancer; two commonly spread/carried diseases, and potentially life threatening diseases. Chronic hepatitis B infection alone “is a global public health issue with >350 million hepatitis B virus carriers worldwide” (Ling, W H Y et, al,1931). Breast cancer has also been on the rise infecting not only women but men as well. So, it is not uncommon for individuals to have both simultaneously causing HBV reactivation; “the increase of the HBV virus and chemotherapy will increase HBV reactivation”…
A virus is a non-living infectious agent that is too small to be seen by regular light…
The proteins help the virus bind with the host cell. Inside the envelope is the capsid, which is a protein shell containing genetic information. Seven or eight strands of ribonucleic acid (RNA) are tightly encapsulated and bound onto coils of ribonuclear proteins (RNPs) that wait to be released onto the host…
The possibility of being capable of changing the human genome to prevent or treat devastating illnesses and serious inherited diseases has always being in the mind of many people and scientists. However, two important events may contribute to make this idea a reality in the near future. One is the decoding of human genome. This has allow scientists the opportunity to comprehend how the genetic information controls the growth, configuration and function of the human body; and at the same time, to understand how variations within our DNA sequence cause diseases.…
After the RNA is converted to DNA, it uses the host cell’s components to replicate the virus over and over again. Mature copies leave the cell and go on to infect other cells. (ipmgglobal.org) Over time, the number of helper T cell is reduced and makes the human body more susceptible to simple viruses and cancer-related illnesses. (van Baarle et al) This disease is most widely spread via sexual contact from…
Introduction: Viral infections can affect many things, including bacteria. When bacteria undergo infections from a virus that virus is called a bacteriophage. After a bacteriophage infects a bacteria it can create two different phases, the lytic or lysogenic cycles. During a lytic stage the bacteriophage causes death to the bacteria.…