Below is a hypothetical developmental pathway. This pathway leads to the expression of a black pigment in certain cells of the ectoderm (the spot cells) which results in the ladybug's spotted appearance. Cells of the ectoderm where black pigment is not produced are red.
L - --| D → Y - --| B → black
Based on the pathway above, will the spot cells in ladybug mutant lacking the D gene be able to make black pigment?
Select one:
O not enough information
O yes
O no
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