podem mutar
Viruses have the ability to greatly affect life on earth. Many viruses, such as HIV and influenza have killed millions of people. By studying viruses, scientists are able to develop vaccines that will protect people (and animals) from viruses.
viruses are used in gene therapy because they can introduct genes into host cels.Viruses are manipuölated to carry genes that will be introducted to defected cell.Viruses dont carry genes that can brign to illnes or that can kill cells.
Viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but on their own they can do nothing until they enter a living cell. Without cells, viruses would not be able to multiply. Therefore, viruses are not living things. When a virus encounters a cell, a series of chemical reactions occur that lead to the production of new viruses. These steps are completely passive, that is, they are predefined by the nature of the molecules that comprise the virus particle. Viruses don't actually 'do' anything. Often scientists and non-scientists alike ascribe actions to viruses such as employing, displaying, destroying, evading, exploiting, and so on. These terms are incorrect because viruses are passive, completely at the mercy of their environment
Viruses are very small and can be considered ultramicroscopic. We were not able to see them with the best light microscopes as we could bacteria (prokaryotes). We have to use an electron microscope to see them as they are that small. This was not available until recently.
Gene therapy is designed to introduce genetic material into cells to compensate for abnormal genes, or to make a beneficial protein. If a mutated gene causes a necessary protein to be faulty or missing, gene therapy may be able to introduce a normal copy of the gene, restoring the function of the protein. Viruses are used in gene therapy as vectors that are genetically engineered to deliver the new copy of the gene by infecting the cell.
No
You may be able to do this, but you will not be able to practice as a music therapist. Also, you need a masters degree in art therapy to practice art therapy. I recommend talking to a professor at the schools you are looking at. They will be able to specifically advise you what to do.
Viruses are inert until they encounter proteins on the surface of a cell that they are able to bind to. Once bound, they react by injecting their nucleic acid component into the cell, which takes it over making millions of copies of the virus.
Viruses have the ability to greatly affect life on earth. Many viruses, such as HIV and influenza have killed millions of people. By studying viruses, scientists are able to develop vaccines that will protect people (and animals) from viruses.
What viruses do is they are not living, so they use the cell's life to 'reproduce'. They take all of the cell's nutrition and use that to multiply. Then the cell is dead, and the viruses go on to take over more cells.
Cathode rays are found in vacuum tubes. Scientists are able to view them when they are a negative cathode because they emit a light and can glow.
which layers of the earth have scientists been able to explore