A diploid plant species (2n = 14) hybridizes with a related diploid (2n = 18). The sterile F₁ hybrid undergoes whole-genome duplication. The resulting fertile plant has chromosome number
- A
- B
- Ccheck_circle
- D
Explanation
Allopolyploidy: F1 (n=7+9=16) doubles to 4n = 32. Each former chromosome now has a homologous pair — meiosis works again, fertility restored. Common in plants (e.g., wheat).