If a plant with diploid # of 24 and a plant with a diploid # of...
If a plant with diploid # of 24 and a plant with a diploid # of 10 cross-fertilize. How many chromosomes will be present in the resulting F1 hybrid offspring? If that plant undergoes a spontaneous chromosome doubling to allow fertility, how many chromosomes will be present in diploid cells of the F2 offspring?
Homework Answers
Plant with diploid # of 24 will produce gamete that has 12 chromosomes. Plant with a diploid # of 10 will produce gamete that has 5 chromosomes.
So, the number of chromosomes in the F1 hybrid offspring will be 17.
Given that plant undergoes a spontaneous chromosome doubling to allow fertility. So diploid number of chromosomes in the hybrid will be 34. Hybrid will produce gametes that have 17 chromosomes in the gametes. When two gametes fused it will give a progeny that is 34 chromosomes.
So, the diploid number of chromosomes in the offspring will be 34.
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