PATHOLOGY

PATHOLOGY MCQ

CELL DAMAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of cells are formed by repeating the cell cycle continuously?
A
Cancer
B
Prokaryotic
C
Eukaryotic
D
Somatic
Explanation: 

Detailed explanation-1: -Mitosis occurs infinitely. The cells never die in cancer, as cancer cells can utilize telomerase to add many telomeric sections to the ends of DNA during DNA replication, allowing the cells to live much longer than other somatic cells. [3] With this mechanism, cancer cells that usually die simply continue to divide.

Detailed explanation-2: -Unlike normal cells, cancer cells don’t stop growing and dividing when there are enough of them. So the cells keep doubling, forming a lump (tumour) that grows in size.

Detailed explanation-3: -Mutations can happen by chance when a cell is dividing. Some mutations mean that the cell no longer understands its instructions. It can start to grow out of control. There have to be about 6 different mutations before a normal cell turns into a cancer cell.

Detailed explanation-4: -It is only when they keep on changing and start to divide uncontrollably, forming lumps or growths, that one of the more than 200 diseases called cancer develops. Growths like this are called tumors.

There is 1 question to complete.