Biology
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Medium
Question
The fate of each blastomere is foretold. The cleavage will be as ____________?
A
Spiral and indeterminate
B
Radial and indeterminate
C
Radial and indeterminate
D
Spiral and determinate
✓ Official correct answer
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A
Spiral and indeterminate
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B
Radial and indeterminate
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C
Radial and indeterminate
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D
Spiral and determinate
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Explanation
When the developmental fate of each blastomere is fixed and predictable from an early stage, this pattern of cleavage is described as spiral and determinate, typically seen in protostome development.