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Question

What is the difference between blastomere and morula?


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Solution

Blastomere:

One of the cells that are produced during the cleavage of a zygote forms the morula.

Morula:

Morula is usually produced in those species the eggs of which contain little yolk and undergo complete cleavage.

Differences between blastomere and morula:

Blastomere

Morula

  1. During the 8-cell differentiation period, the blastomeres form adherens junctions and subsequently polarize along the apical-basal axis.
  1. It contains 8-16blastomeres.
2. The blastomeres is a 4-cell stage. 2. Morula is a 16-cell stage.
3. Human embryos can develop individually into blastocysts with inner cell mass and trophectoderm. 3. In humans, morula consists of more than 60 cells.


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