INTRODUCTION TO MICROSCOPY CELL BIOLOGY
DIFFERENTIATED CELL
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
When cells are grown in a laboratory, which of the following is a factor that can stop normal cells from dividing?
|
|
contact with other cells
|
|
|
growth factors
|
|
|
a cut in the skin
|
|
|
injection of cyclin
|
Explanation:
Detailed explanation-1: -While normal cells will stop division in the presence of genetic (DNA) damage, cancer cells will continue to divide.
Detailed explanation-2: -Cell cycle progression is mainly driven and regulated by two classes of proteins, Cdks and cyclins [26] (Figure 3). In yeast, while several Cdks are expressed, including Cdk1, PHO85, and Kin28, only Cdk1 directly regulates cell cycle progression.
Detailed explanation-3: -Cells regulate their division by communicating with each other using chemical signals from special proteins called cyclins. These signals act like switches to tell cells when to start dividing and later when to stop dividing.
There is 1 question to complete.