MCQ
A farmer crossed a walnut combed chicken with a single combed one and obtained all walnut combed chickens in $F_1$. The genotype of the parents was
- A$Rr\ Pp × rr\ pp$
- ✓$RR\ PP × rr\ pp$
- C$RR\ pp × rr\ pp$
- D$RR\ Pp × rr\ pp$
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