GarettNguyen1166
27.01.2022 •
Biology
A proto oncogene is a normal gene which is expressed in the
physiological condition
O true
O false
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Ответ:
Ответ:
True
Explanation: Proto-oncogenes are genes that normally help cells grow. When a proto-oncogene mutates (changes) or there are too many copies of it, it becomes a "bad" gene that can become permanently turned on or activated when it is not supposed to be. When this happens, the cell grows out of control, which can lead to cancer. This bad gene is called an oncogene.
It may be helpful to think of a cell as a car. For it to work properly, there need to be ways to control how fast it goes. A proto-oncogene normally functions in a way that is much like a gas pedal. It helps the cell grow and divide. An oncogene could be compared with a gas pedal that is stuck down, which causes the cell to divide out of control.
Ответ:
viruses are not alive. they need something that has the capacity for reproduction, a host cell in this case will be given the viruses genetic material and replicate it.
Explanation: