An egg and sperm cell combine to create a fertilized egg. After multiple cell divisions, the fertilized egg results in many different types of cells, such as: blood cells, bone cells, gland cells, and nerve cells.
The specialized cells in the image develop during cell differentiation. How does the cell cycle ensure cells are able to specialize?
A.
It adds new DNA to the cells that code for specific functions.
B.
It copies the DNA that provides the instructions for specialization.
C.
It splits up the DNA into different cell types during cellular division.
D.
It combines the DNA from the sperm and the egg cells to create cells with unique functions.
1 answer
The correct answer is B. It copies the DNA that provides the instructions for specialization.
During the cell cycle, cells undergo processes such as DNA replication where the DNA is copied, ensuring that when cells divide, each new cell has the complete set of genetic instructions necessary for specialization. This allows cells to differentiate into various types, such as blood cells, bone cells, gland cells, and nerve cells, as they express specific genes relevant to their function.
