AP BIOLOGY

CELL DIVISION

CELL DIVISION AND CANCEROUS CELLS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Most prokaryotes reproduce through which process
A
sexual reproduction
B
binary fission
C
meiosis
D
budding
Explanation: 

Detailed explanation-1: -Reproduction in prokaryotes is asexual and usually takes place by binary fission. The DNA of a prokaryote exists as as a single, circular chromosome. Prokaryotes do not undergo mitosis; rather the chromosome is replicated and the two resulting copies separate from one another, due to the growth of the cell.

Detailed explanation-2: -The single, circular chromosome exists in a region of cytoplasm called the nucleoid. Occurs through binary fission. As the chromosome is replicated, the two copies move to opposite ends of the cell by an unknown mechanism. FtsZ proteins assemble into a ring that pinches the cell in two.

Detailed explanation-3: -Benefits of Binary Fission 1-Only one parent is needed to reproduce. 2-Rapid division eg. Escherichia coli can divide every 20 minutes. 3-Daughter cells are clones of their parent cells.

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