What term describes the extent to which all blastomeres are even in size and shape?

What term describes the extent to which all blastomeres are even in size and shape?

• A. Blastocyst
• B. Blastomere
• C. Blastomere symmetry
• D. Cleavage stage embryos

Answer: (C)

Uniformity of the daughter cells after cleavage is described by blastomere symmetry. This term refers to how close in size and shape all blastomeres are as the embryo divides. When divisions are even and cytoplasm is distributed evenly, blastomeres are similarly sized and shaped, showing high symmetry. If divisions are uneven, blastomeres vary in size and shape, indicating lower symmetry. To place it in context: a blastocyst is a later stage with a fluid-filled cavity; a blastomere is any one of the cells produced by cleavage; and cleavage stage embryos refer to the early embryo during the rapid division phase. The specific concept asked is the symmetry among blastomeres—the degree of their equal size and form.

Uniformity of the daughter cells after cleavage is described by blastomere symmetry. This term refers to how close in size and shape all blastomeres are as the embryo divides. When divisions are even and cytoplasm is distributed evenly, blastomeres are similarly sized and shaped, showing high symmetry. If divisions are uneven, blastomeres vary in size and shape, indicating lower symmetry.

To place it in context: a blastocyst is a later stage with a fluid-filled cavity; a blastomere is any one of the cells produced by cleavage; and cleavage stage embryos refer to the early embryo during the rapid division phase. The specific concept asked is the symmetry among blastomeres—the degree of their equal size and form.