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Question

Which structure undergoes division forming a blastocyst?


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Solution

Blastocyst:

  1. The fertilized egg by the sixth day is known as a blastocyst.
  2. It contains 200-300 cells.
  3. It is a rapidly dividing ball of cells.
  4. It is a thin-walled hollow structure from which an embryo arises.
  5. The zygote undergoes mitotic divisions to form a blastocyst, when it is implanted in the uterus it leads to pregnancy.

Zygote:

  1. Fertilized egg cell that results from the union of female gamete with male gamete.
  2. Zygote undergoes development into an embryo and fetus.

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