In an allopolyploid organism, what is true regarding the fertility of interspecies hybrids?
A) Interspecies hybrids will be fertile so long as there is an odd number of chromosomes in the offspring.
B) Interspecies hybrids are fertile due to nonhomology of chromosomes.
C) Chromosome doubling by nondisjunction in gametocytes can lead to homologous chromosome pairing, disjunction, and fertile hybrids.
D) Meiotic nondisjunction produces three haploid gametes and one diploid gamete.
E) Mitotic nondisjunction results in haploid cells.

Question

Quizplus · Accepted Answer

Chromosome doubling by nondisjunction in gametocytes can lead to homologous chromosome pairing, disjunction, and fertile hybrids, allowing for the restoration of fertility in allopolyploid organisms by providing each chromosome with a homologous partner for pairing during meiosis.

In an Allopolyploid Organism, What Is True Regarding the Fertility