Hexaploid Wheat Was Produced Synthetically by He and Co-Workers

question 5

Multiple Choice

Hexaploid wheat was produced synthetically by He and co-workers.They mated the diploid species,Aegilops tauschii,and the tetraploid species,T.turgidum.Which of the following is an accurate statement about the relative contribution of each parent to the genome of the hexaploid offspring?

• A)Each parent contributed equally to the genome of the offspring.
• B)Aegilops tauschii contributed four chromosomes by failing to complete meiosis after chromosome replication,and T.turgidum contributed two chromosomes.
• C)Aegilops tauschii contributed two chromosomes,and T.turgidum contributed four chromosomes.
• D)The hexaploid number appeared following mitosis with no subsequent cell division.

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