PATHOLOGY

PATHOLOGY MCQ

CELL DAMAGE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Cell division in eukaryotes is called ____ while in prokaryotes it is ____
A
mitosis; cytokinesis
B
mitosis; interphase
C
mitosis; binary fission
D
mitosis; cell cycle
Explanation: 

Detailed explanation-1: -Unlike eukaryotes, prokaryotes (which include bacteria) undergo a type of cell division known as binary fission. In some respects, this process is similar to mitosis; it requires replication of the cell’s chromosomes, segregation of the copied DNA, and splitting of the parent cell’s cytoplasm.

Detailed explanation-2: -Binary fission occurs primarily in prokaryotes (bacteria), while mitosis only occurs in eukaryotes (e.g., plant and animal cells). Binary fission is a simpler and faster process than mitosis. The third main form of cell division is meiosis.

Detailed explanation-3: -Binary fission is different from mitosis because prokaryotic cells do not have a true nucleus like eukaryotes. Also, there is no mitotic spindle formation in the nucleus during binary fission.

Detailed explanation-4: -Binary fission in eukaryotic cells Sexual reproduction is common among eukaryotes; however, some of them can reproduce asexually. Protozoa are examples of eukaryotes that can reproduce by binary fission. Mitochondria, one of the major organelles in eukaryotic cells, divide by binary fission.

Detailed explanation-5: -In the process of binary fission, an organism duplicates its genetic material, or deoxyribonucleic acid (DNA), and then divides into two parts (cytokinesis), with each new organism receiving one copy of DNA. Binary fission is the primary method of reproduction of prokaryotic organisms.

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