| spiral cleavage |
The cleavage process in molluscs and some invertebrates whereby orientation of the spindle at mitosis is at an angle to the original egg axis.
Ãâó: helios.bto.ed.ac.uk/bto/glossary/s.htm
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| spiral cleavage |
Pattern of early cleavage found in molluscs and annelids (both mosaic eggs). The animal pole blastomeres are rotated with respect to those of the vegetal pole. In some molluscs, the handedness of the spiral twist is maternally inherited.
Ãâó: worms.zoology.wisc.edu/urchins/SUglossary.html
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