Q8: Poorly developed mucous glands in the female silkworm Bombyx mori cause eggs to be easily separated from the papers

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Q8: Poorly developed mucous glands in the female silkworm Bombyx mori cause eggs to be easily
separated from the papers on which they are laid. This is a dominant genetic condition; its wild-type
recessive allele Ng þ produces normally “glued” eggs. Another dominant gene C, 14 map units from Ng,
produces a golden-yellow color on the outside of the cocoon and nearly white inside. Its recessive wildtype alleleC þ produces normally pigmented or wild type cocoon color. A pure “glueless” strain is
crossed to a pure golden strain. The F1 females are then mated to their brothers to produce the F2.
Predict the number of individuals of different phenotypes expected to be observed in a total of 500 F2
offspring. (Hint: Crossing over does not occur in female silkworms.