AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What type of cells have not begun to differentiate into specialized cells?
A
gametes
B
stem cells
C
somatic cells
D
neurons
Explanation: 

Detailed explanation-1: -Pluripotent stem cells are undifferentiated; they do not have any tissue-specific characteristics (such as morphology or gene expression pattern) that allow them to perform specialized functions.

Detailed explanation-2: -There are several steps of specialization. Developmental potency is reduced with each step, which means that a unipotent stem cell is not able to differentiate into as many types of cells as a pluripotent one.

Detailed explanation-3: -Embryonic cells do not begin to differentiate until gastrulation, the stage in which multiple different tissue layers form inside the embryo.

Detailed explanation-4: -Finally, we have the unipotent stem cells, which are the least potent and most limited type of stem cell. An example of this stem cell type are muscle stem cells. While muscle stem cells can self-renew and differentiate, they can only do so into a single cell type.

Detailed explanation-5: -Stem Cells A stem cell is an unspecialized cell that can divide without limit as needed and can, under specific conditions, differentiate into specialized cells.

There is 1 question to complete.