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Question
The oogonia are formed before the birth and no more are added after that in human females. These cells start the cell division but get arrested at a specific stage. Which stage is that?
The oogonia are formed before the birth and no more are added after that in human females. These cells start the cell division but get arrested at a specific stage. Which stage is that?
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Solution
The correct option is A Prophase I
Millions of oogonia are formed prior to the birth of the human females.
Some of the oogonia differentiate and form into the primary oocyte. Primary oocyte undergoes meiosis I, however it gets temporarily arrested at prophase I of meiosis I till puberty.
After the attainment of puberty, the primary oocyte completes its first meiotic division resulting in the formation of a large haploid secondary oocyte and a tiny first polar body.
Millions of oogonia are formed prior to the birth of the human females.
Some of the oogonia differentiate and form into the primary oocyte. Primary oocyte undergoes meiosis I, however it gets temporarily arrested at prophase I of meiosis I till puberty.
After the attainment of puberty, the primary oocyte completes its first meiotic division resulting in the formation of a large haploid secondary oocyte and a tiny first polar body.
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