Which developmental outcome occurs in silkworm pupae when ecdysone production is prematurely inhibited during metamorphosis?

💡 Explanation

When ecdysone production is inhibited the pupa cannot transition to the next stage because the hormonal signal for gene expression changes needed for differentiation of adult morphology are not triggered. Therefore failure to differentiate results, rather than cuticle hardening, protein increase, or pathogen defense which involve different biochemical pathways.

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