NEET BIOLOGY

CELL STRUCTURES AND FUNCTION

CELL DIVISION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cell differentiation is when:
A
cells undergo mitosis
B
cells become specialized (into skin cells, nerve cells, etc.)
C
cells undergo apoptosis
D
cells become cancerous
Explanation: 

Detailed explanation-1: -In human development, a fertilized egg undergoes differentiation into other types of specialized cells present in the body such as muscle, neurons, etc. Undifferentiated cells are known as stem cells. These stem cells are located in the embryos and in adults.

Detailed explanation-2: -In order for a cell to differentiate into its specialized form and function, it need only manipulate those genes (and thus those proteins) that will be expressed, and not those that will remain silent. The primary mechanism by which genes are turned “on” or “off” is through transcription factors.

Detailed explanation-3: -Listen to pronunciation. (sel DIH-feh-REN-shee-AY-shun) The process during which young, immature (unspecialized) cells take on individual characteristics and reach their mature (specialized) form and function.

There is 1 question to complete.