A) Triploid with 21 chromosome
B) Hexaploid with 42 chromosome
C) Tetraploid with 30 chromosome
D) Diploid with 14 chromosome
Correct Answer: B
Solution :
Common cultivated wheat is an example of allopolyploidy. Triticum aestivum is hexaploid with 2n = 42 and derived from three diploid species (i) AA = Triticum aequilopoides (2n = 14), (ii) BB = Aegilops speltoides (2n = 14), (iii) DD = Aegilops squarrossa (2n = 14).
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