AGB-0093
QUESTION
Fertilized ovum immediately starts dividing into series of mitosis by a process called?
OPTIONS
(A) Blastulation
(B) Cleavage
(C) Gastrulation
(D) Nevrulation
ANSWER
(B) Cleavage
EXPLANATION
Cleavage is the series of rapid mitotic divisions that begins soon after fertilization, producing progressively smaller blastomeres without an overall increase in embryo size. Blastulation forms the blastocyst, gastrulation establishes the germ layers, and neurulation forms the neural tube.
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