Edited Invalid date
17.8 Viruses -- Part 1
Researchers have been able to identify stretches of DNA that code for other genes.
Our genes are regulated by a lot of our DNA.
Almost 80% of our genome has been assigned a function, allowing scientists to better understand human diseases caused by errors in DNA replication, transcription, or regulation.
What materials are needed by viruses to grow?
There are diseases that attack plants and animals.
The host cell begins to replicate the viral DNA in the same way when the viral nucleic acid enters and mixes with the materials in the host cell.
A viral particle leaves the cell when a protease makes aProtein coat to form a viral particle.
New viruses are released by the cell when it makes so many virus particles.
Vaccines boost the immune response by causing the body to produce antibodies to the viruses.
The use of vaccines can prevent several childhood diseases.
A new virus is released.
There are 2 viral DNA replicates.
The host cell's machinery and materials can be used to make viral mRNA, new viral DNA, and viral proteins.
Newly assembled viruses are released to other cells.
Once produced, the single strands form double-stranded DNA using the nucleotides present in the host cell.
The proviruses form a strand of DNA.
The host cell's genetic material is incorporated into the viral RNA.
More virus particles are produced by the protease.
The HIV virus causes the disease.
T4 lymphocyte cells are involved in the immune response and are destroyed by HIV.
After the HIV binding to the surface of a T4 cell, the virus injects viral RNA into the cell.
As a retroviruses, the genes of the viral RNA direct the formation of viral DNA, which is incorporated into the host's genome so it can replicate as part of the host cell's DNA.
The immune system's ability to destroy harmful organisms is reduced by the gradual depletion of T4 cells.
M17_TIMB8860_13_GE_C17.indd 638 is a transcript of cell entry and reverse transcription.
The drugs AZT (3'@azido@2'@deoxythymidine) and ddI (2',3'@dideoxyinosine) are similar.
Two other drugs are 2',3'@didecytidine and 2',3'@didehydro2'.
These compounds are found in the "cocktails" that are helping with the cure of HIV.
The formation of sugar-phosphate bonds is stopped when a nucleoside analog is incorporated into the virus.
The immune system in the body is destroyed by AIDS.
Entry inhibitors attach to the surface of the lymphocyte or HIV virus, which blocks entry into the cell.
Enfuvirtide and maraviroc are entry inhibitors.
Different combinations are used to prolong life.
Lexiva doesn't provide the necessary replication machinery for Viruses because they only contain packets of DNA orRNA.
The genetic material of a specific virus.
Cells in the body go through an orderly and controlled division.
When cells begin to grow and multiply without being controlled, they become tumors.
These tumors are benign if they are limited.
The tumors arecancerous when they invade other tissues and interfere with normal functions.
According to some reports, 70% to 80% of human cancers are caused by the herpesviruses 4.
Cigarette smoke and aniline dyes are known to be carcinogens.
Most of the people with lung cancer are smokers.
The popularity of sun tanning and the reduction of the ozone layer may be factors in the increase of cancer.
There are known carcinogens listed in radiation from sunlight.
There areogenic viruses that cause cancer.
One of the most common forms of cancer is skin cancer.
The viruses associated with human cancers are related to the damage to the genes in the skin caused by exposure to the sun.
Within families, the cells lose their abil frequently.
There is a possibility that there is a missing or ity.
Uncontrolled cell division may be responsible.
Review flashcards and saved quizzes
Getting your flashcards
Privacy & Terms