A cell with adefective p53 gene is likely to
a. stop responding to growth regulators
b. stop dividing to produce daughter cells *****
c. generate hormones that combat tumors
d. produce cells without a defective p53 gene
Since this is not my area of expertise, I searched Google under the key words "defective p53 gene" to get these possible sources:
https://www.google.com/search?client=safari&rls=en&q=defective+p53+gene&ie=UTF-8&oe=UTF-8
http://www.hackcollege.com/blog/2011/11/23/infographic-get-more-out-of-google.html
The answer is
A. stop responding to growth regulators
The correct answer is b. stop dividing to produce daughter cells.
To arrive at this answer, we need to understand the role of the p53 gene. The p53 gene is a tumor suppressor gene that plays a crucial role in regulating cell division and preventing the development of cancer. When there is a defect or mutation in the p53 gene, it can disrupt the normal functions of the gene.
One of the functions of the p53 gene is to monitor the integrity of DNA in cells. If a cell has a defective p53 gene, it will often lose the ability to detect and repair DNA damage. When DNA damage occurs, the cell with intact p53 will usually arrest its cell cycle, allowing time for the DNA to be repaired or triggering cell death if the damage is severe. However, a cell with a defective p53 gene will often proceed with the cell cycle even with damaged DNA.
As a result, a cell with a defective p53 gene is more likely to continue dividing even when its DNA has genetic mutations or damage. This can lead to the production of daughter cells with genetic abnormalities, increasing the risk of tumor formation and cancer development.
Therefore, the most likely outcome for a cell with a defective p53 gene is that it will stop dividing to produce daughter cells, as the normal control over cell division is lost without functional p53.