Question

15) You are given a plant and are told that it is a fertile allopolyploid. Cytological examination of somatic tissue reveals the chromosome number to be 52. You are further told that one of the parent species, species A, has a haploid number of 13. What is the haploid number of the other parent, species B?

Answer 1

The haploid number of species B will be 13 since the fertile alloploid has 52 chromosome and species A has 13. Species A and B cross to form a diploid of 26 chromosome this undergo chromosome doubling to form 52 chromosome.